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Tytuł:
Struktura klonalna wiązu polnego (Ulmus minor Mill.) w Polsce
Clonal structure of field elm (Ulmus minor Mill.) in Poland
Autorzy:
Chudzińska, M.
Litkowiec, M.
Pałucka, M.
Pasławska, A.
Lewandowski, A.
Kozioł, C.
Powiązania:
https://bibliotekanauki.pl/articles/979539.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
dendrologia
drzewa lesne
wiaz polny
Ulmus minor
zmiennosc genetyczna
markery genetyczne
markery mikrosatelitarne
clonality
field elm
genetic conservation
genetic variation
microsatellite markers
Opis:
Field elm (Ulmus minor Mill.) is distributed mainly across central and southern Europe. In Poland this species occurs in the lowlands and foothills, where it grows mainly in the floodplain forests along the rivers. U. minor exists in a variety of climatic and ecological conditions. It is capable to tolerate floods as well as drought. Currently, most populations of U. minor are small and fragmented resulting from human activity and Dutch elm disease. Moreover, in the natural field elm populations, vegetative propagation by root suckers or sprouting can be observed. All these factors may affect the level of genetic variation of U. minor populations in Poland. In the present study, we determined the level of genetic variation and the clonal diversity of twelve natural U. minor populations in Poland (407 individuals) using eight nuclear microsatellite loci. The obtained results indicate that the studied field elm populations are characterized by low level of genetic variation (He=0.382; Ho=0.555; A=7.0). Additionally, the high level of clonality in field elm populations was estimated. The clonality level of examined elm populations varied among them, and in some cases was very high. Out of the 407 individuals analysed for clonal structure only 61 multilocus genotypes were identified. Furthermore, only one genotype was identified in the three study populations of field elm, which means that in each of these populations all trees belong to one genet. The values of genotypic richness (R) were heterogeneous among populations, with mean 0.148. The knowledge on the genetic diversity and the clonal structure of U. minor populations is essential to make future decisions regarding conservation of genetic resources of this species in Poland.
Źródło:
Sylwan; 2019, 163, 10; 839-845
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of SCAR makers for longan (Dimocarpus longan L.) authentication in Vietnam
Autorzy:
Ho, V.T.
Ngo, Q.N.
Powiązania:
https://bibliotekanauki.pl/articles/79939.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Dimocarpus longan
longan
fruit
Vietnam
genetic conservation
morphological characteristics
chemical characteristics
SCAR marker
random amplified polymorphic DNA analysis
molecular marker
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Znaczenie zmienności genetycznej dla ochrony zasobów genowych cisa pospolitego w Europie
Importance of genetic variation for conservation of English yew genetic resources in Europe
Autorzy:
Litkowiec, M.
Plitta, B.P.
Lewandowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/991598.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
cis pospolity
Taxus baccata
zasoby genowe
zmiennosc genetyczna
ochrona zasobow genowych
genetic variation
genetic conservation
ex situ
in situ
english yew
Opis:
The genetic variation is considered to be a key factor for long−term survival of the species. The recognition of the existing genetic diversity is the preliminary phase in development of an effective strategy for conservation of forest tree species gene pools. Taxus baccata L. with a wide but scattered distribution in Europe is an example of rare and endangered species that needs both ex situ and in situ protection. The increase in fragmentation and isolation of populations and reduction in effective population size can cause erosion of the gene pool through increased genetic drift, increased inbreeding, reduced gene flow and decreased migration rate. As a result, local populations may be responsible for the loss of genetic variation, hence a decrease in their viability and adaptability. A few genetic analyses based on isozymes and DNA markers indicate that the yew, both in Poland and in other regions of Europe, is characterized by high levels of genetic variation within populations and moderate genetic differentiation between populations.
Źródło:
Sylwan; 2013, 157, 10; 754-760
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polodowcowa historia jodły pospolitej (Abies alba Mill.) w Polsce jako efekt migracji z różnych ostoi plejstoceńskich - dotychczasowy stan wiedzy
Postglacial history of silver fir (Abies alba Mill.) in Poland as a result of migration from different refugia - the current state of knowledge
Autorzy:
Litkowiec, M.
Lewandowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/973534.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
Abies alba
okres polodowcowy
zasieg wystepowania
leśnictwo
drzewa leśne
jodła pospolita
populacje roślin
zasięg występowania
zmienność genetyczna
ochrona zasobów genowych
genetic variation
genetic conservation
postglacial history
Albies alba Mill.
Opis:
The paper reviews the current knowledge about the genetic variation, glacial and postglacial history of Polish populations of silver fir (Abies alba Mill.). This species occurs in the mountainous forests of central and southern Europe, from the Pyrenees up to the Balkans, where it is important from both ecological and economical points of view. The current knowledge about glacial and postglacial history of fir has been obtained from palynological and genetic studies. During the last ice age A. alba survived in the refugia in southern Europe, the central Apennines, the south of the Balkan Peninsula and the Central Massif in France. Two other refugia remained isolated – one in Calabria in the south of the Apennines and one in the Pyrenees. Furthermore the most likely routes of postglacial recolonization of silver fir as well as the introgression zone between them have been identified. In Poland, silver fir reaches the north−eastern border of its natural range. Several earlier studies based on isozymes and DNA markers (mitochondrial and chloroplast) have reported that the Polish populations of fir are characterized by lower levels of genetic variation within populations and higher genetic differentiation between them than other coniferous species. Fir probably migrated to Poland from two glacial refugia located in the Balkan and Apennines Peninsula. Notwithstanding, a recent study on Polish silver fir populations carried out with mtDNA marker, strictly maternally inherited, indicated that the species migrated to the Polish territory from the refugium in western Europe. However, this study did not take into account the possibility of participation of pollen pool of Balkan origin in the formation of the Polish populations of fir. Until now, there have been only a few reports concerning the gene pool of fir in Poland. Therefore, it is necessary to supplement the knowledge about its genetic variation. In the course of several episodes of silver fir decline during the past century, its populations have decreased in size and currently are scattered throughout the entire European range. Reliable information on the distribution of genetic variation is a prere−quisite for proper management of forest genetic resources in a short−term and long−term perspective. The recognition of the existing genetic diversity is also the preliminary phase in development of an effective strategy for conservation of forest tree species gene pools.
Źródło:
Sylwan; 2015, 159, 02; 109-116
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endangered indigenous cattle breeds of Nigeria a case for their conservation and management
Autorzy:
Gwaza, D. S.
Momoh, O. M.
Powiązania:
https://bibliotekanauki.pl/articles/1192705.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Cattle-breed
Conservation
endangered
genetic-diversity
Opis:
The Nigeria cattle breeds and their productivity were reviewed. A case was made for their conservation and management, an action plan was also proposed for the Nigerian government. The indigenous cattle breeds of Nigeria have short calving interval, are hardy and trypanotolerant, known for early maturity with low mortality rate for total herd (2% and 4.7% for Muturu and Keteku respectively). The Kuri has high potentials for milk production and can calve up to twelve times in life time. They also have enormous contribution to source of income to many cattle rearers in Nigeria. The indigenous cattle breeds of Nigeria are endangered. The Muturu, N’dama and Keteku are endangered due to extensive uncontrolled crossbreeding with exotic breeds. There is also waning interest among farmers in the use of intact indigenous breeds. The Kuri and Biu cattle breeds are endangered due primarily to environment factors. The civil war also had a significant effect on the elimination of some indigenous cattle breeds especially the forest breeds. The endangered indigenous cattle breed can be conserved by the In-situ techniques. The cost of maintenance of the insitu preservation is often high, but it is to be preferred because it is less technically involving and can be well manage given adequate technologies and funds. The inbreeding effect and maintenance of natural habitat can be reduce by use of appropriate mating system and preservation of the original environment. The live conservation techniques can be organise into park with wild life for revenue generation. Rural farming communities can also be organize to form National indigenous cattle breed ownership Scheme (NICABROS), as a community based conservation management technology are action plans that are propose for insitu conservation of Nigerian endangered cattle breeds.
Źródło:
World Scientific News; 2016, 30; 68-88
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variation of arta populations (Calligonum polygonoides subsp. comosum) in Egypt : Genepools for biodiversity and afforestation
Autorzy:
Mahdy, Ehab M.B.
Rizk, Rehab M.
Powiązania:
https://bibliotekanauki.pl/articles/2203540.pdf
Data publikacji:
2023
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
afforestation
biodiversity conservation
Calligonum polygonoides
genetic diversity
Opis:
Genetic diversity manipulates a prime and vital role in the sustainable use of genetic resources. The data highlighted more insights into the genetic diversity of the arta plant (Calligonum polygonoides subsp. comosum) populations collected from three localities, Qalabshu (QQ), Mutubas (MM) and Gamasa (GG), in Egypt as gene pool for biodiversity conservation and afforestation. Random amplified polymorphic DNA (RAPD) markers investigated the population pattern and structure. A total of 129-amplicons oscillated from 145 to 1505 bp and a total of 19-amplicons were specific markers with an average of nine bands for each population. The Shannon index (I) scored at an average of 0.3. The diversity (h) oscillated from 0.11 to 0.25. The similarity matrices based on Jaccard coefficient recorded positive values. A higher correlation (r = 0.83) was between the combined Qalabshu (QQ) and Mutubas (MM) matrices using the Mantel test with 1,000 permutations. This species has higher adaptability for their regions. This gene pool is a valuable reservoir for enriching genetic diversity and provides basal information for the biodiversity conservation of a dominant species. The dominant species can be utilised in afforestation in the same region or another region which has the same environmental conditions.
Źródło:
Journal of Water and Land Development; 2023, 56; 81--90
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conservation of the genetic diversity of local corn (Zea mays L.) in the Yucatan Peninsula, Mexico
Autorzy:
González-Valdivia, Noel A.
Cetzal-Ix, William
Basu, Saikat Kumar
Pérez-Ramírez, Isidra
Martínez-Puc, Jesús F.
Zandi, Peiman
Powiązania:
https://bibliotekanauki.pl/articles/2182157.pdf
Data publikacji:
2016-12-31
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
Campeche
conservation
corn
cultivation
diversity genetic
Mexico
Yucatán
Opis:
The production of native corn at regional level is greatly limited by the seasonality of rainfall, availability of adequate lands, poor fertility status of the soil, high input costs and constraints of resources of the local corn growers and/or producers. The challenges of reduced cultivable area give very little opportunity for increasing production area in a sustainable manner; it is important to note that the soil recover their fertility status through crop rotation and prolonged rest period (> 25 years) known as sequential agroforestry system or "milpa". During 2015, corn collections were performed in the Yucatan Peninsula, Mexico that included five races from the Yucatan (in localities of Nohacal and Peto) and Campeche (Calakmul, Suc-Tuc, Sakabchen, I Chek) states. The races identified were: 1) Nal-Tel (gallito), 2) Dzit Bacal, 3) Xnu’uc Naal (Tuxpeño), 4) Palomero and, 5) Tabloncillo. The local varieties, Pix Cristo (Knees of Christ), Eh Hu (Purple maize) and Chac Chu’ub (Chac´s Blood or Red maize), are included within the Tuxpeño (Xnu´uk Naal) race. The land race of corn that is in imminent danger of extinction is Nal-Tel, characterized by its precocity and ability to escape periods of low rainfall; is important to rescue it for adoption to the practices of local and regional production. The adaptation of this race as a germplasm is important due to its resilience to climate change itself. Palomero, Tabloncillo, Pix Cristo, Chac Chu´ub and Eh Hu can thus be used in traditional food industry, to preserve the traditional knowledge and to provide opportunities for additional income for the local, rural communities. Yellow Palomero and Tabloncillo races are new records of germplasm for the region; and hence essential is exchanging their seeds among local producers and growers.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2016, 1; 71-84
2543-8832
2545-0999
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Population genetic structure of Iris pumila L. in Ukraine: effects of habitat fragmentation
Autorzy:
Bublyk, O.
Andreev, I.
Parnikoza, I.
Kunakh, V.
Powiązania:
https://bibliotekanauki.pl/articles/2117815.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
conservation
genetic polymorphism
habitat fragmentation
ISSR markers
population
genetics
Opis:
Habitat fragmentation is one of serious threats to biodiversity of nature in today's world. The present study of a typical steppe species Iris pumila L. (Iridaceae) has analyzed the impacts of geographical isolation and population size on genetic diversity and population structure in conditions of habitat fragmentation. The key indices of population genetic variability calculated from the ISSR markers data were on average as follows: Shannon diversity index (S) – 0.188; unbiased Nei’s gene diversity (He ) – 0.123; and the average measure of Jaccard’s genetic distances between individuals within populations – 58.4%. Although the largest population had significantly higher values of S and He, the small and marginal populations also showed a comparable level of variation. Most of the genetic variation of I. pumila was distributed within the populations. A strong correlation was found between Nei’s genetic distances and geographic distances between the populations. According to the Bayesian analysis, genetic structure of the populations was highly homogeneous; however, the presence of admixed genotypes indicated the possibility of gene flow between the populations at present.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2020, 62, 1; 51-61
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic evaluation of seeds of highly endangered Pinus uliginosa Neumann from Wegliniec Reserve for ex-situ conservation program
Autorzy:
Lewandowski, A
Burczyk, J.
Wachowiak, W.
Boratynski, A.
Prus-Glowacki, W.
Powiązania:
https://bibliotekanauki.pl/articles/57105.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
mating system
conservation
hybridization
Wegliniec Reserve
peat bog pine
Pinus uliginosa
conservation programme
genetic variation
Opis:
Peat-bog pine Pinus uliginosa Neumann has become extinct or rare in many parts of Europe. We have investigated the levels of genetic variation and inbreeding in seeds collected from a highly endangered reserve of this species in Poland, using allozymes as genetic markers. Generally, a high level of genetic variation was observed. The mean expected heterozygosity was 0.376, while average (Na) and effective (Ne) numbers of alleles per locus were 2.45 and 1.67, respectively. Nevertheless, we have detected relatively low levels of outcrossing, and potential biparental inbreeding. The population-wide multilocus outcrossing rate was estimated to be 0.706 (±0.091), while the minimum variance mean of single-locus estimates was distinctly lower (ts=0.611). The estimates of outcrossing calculated for individual trees ranged widely from 0.051 to 1.017, indicating the complexity of outcrossing patterns. The investigated population of P. uliginasa from Węgliniec is small and surrounded by extensive forest stands of P. sylvestris. Our three-year records of phenological observations demonstrated that flowering periods for P. uliginosa and P. sylvestris overlap, allowing for cross-pollination. The possibility of P. uliginosa pollination by P. sylvestris creates a potential danger of genetic erosion of the P. uliginosa gene pool. Nonetheless, based on a species specific cpDNA marker we have found that among 533 seedlings of P. uliginosa there were only six seedlings carrying cpDNA marker specific for P. sylvestris, indicating that such hybridization seems to be rare.
Źródło:
Acta Societatis Botanicorum Poloniae; 2005, 74, 3
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mitochondrial DNA variability in Gyimesi Racka and Turcana sheep breeds
Autorzy:
Kusza, Szilvia
Zakar, Erika
Budai, Csilla
Cziszter, Ludovic-Toma
Padeanu, Ioan
Gavojdian, Dinu
Powiązania:
https://bibliotekanauki.pl/articles/1039104.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
farm animal conservation
genetic diversity
mtDNA
trans-boundary breeds
Zackel group
Opis:
The current knowledge and documentation on the origins and relationship between Gyimesi Racka reared in Hungary and the Romanian Turcana is rather controversial. Lack of information and scientific reliable proofs for the divergent theories found in the two countries motivated us to implement a trial using molecular methods to assess the genetic distance and diversity in the two breeds. Hair follicles were collected from Gyimesi Racka (2 phenotypes) and from Turcana (6 ecotypes). The 599 bp segment of the D-loop region of the mitochondrial DNA was sequenced. Altogether, 42 haplotypes were identified, while 23 were found in both populations. Populations were highly diverse according to the haplotype and nucleotide diversity indices. AMOVA analysis showed that most of the variation was observed within populations (98%), indicating a weak genetic structure between the two breeds. Animals were grouped into seven groups based on their phenotype; however genetic distances among them were also low. Tajima's D, Fu's Fs, goodness-of-fit statistics, mismatch distribution and network analysis suggested recent demographic expansion. Current comprehensive mtDNA study indicates that there is very low level of genetic differentiation between the Gyimesi Racka and Turcana populations therefore they are de facto one trans-boundary breed.
Źródło:
Acta Biochimica Polonica; 2015, 62, 2; 273-280
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of stakeholders’ implementation of the National Strategy for sustainable utilisation and conservation of animal genetic resources in Poland
Analiza wdrażania Krajowej strategii zrównoważonego użytkowania i ochrony zasobów genetycznych zwierząt w Polsce
Autorzy:
Martyniuk, E.
Chelminska, A.
Krupinski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2793.pdf
Data publikacji:
2016
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
stakeholder
implementation
national strategy
sustainable utilization
conservation
animal genetic resource
Polska
Opis:
Analysis of stakeholders’ implementation of the National Strategy for sustainable utilisation and conservation of animal genetic resources in Poland. The study, based on the customised questionnaire, was aimed at evaluating the contribution of relevant stakeholder groups in the implementation of Strategic Priorities and specific tasks identified in the Action Plan to the National Strategy. The analysis shows that breeders associations and other organizations entrusted with herd book keeping, as well as agricultural universities, are significantly contributing to the implementation of the National Strategy. In addition, significant involvement in implementation was reported by regional authorities (Marshal’s Offices in voivodships) and extension services. Public administration and governmental agencies proved to be heavily engaged in implementation and enforcement of specific areas of the Action Plan.
Analiza wdrażania Krajowej Strategii zrównoważonego użytkowania i ochrony zasobów genetycznych zwierząt w Polsce.Badania, oparte na ankietach przygotowanych indywidualnie dla wybranych grup organizacji miały za zadanie ocenić, w jakim zakresie te grupy przyczyniają się do realizacji Strategicznych Priorytetów i specyficznych zadań, przyjętych w Planie Działań do Krajowej Strategii. Analiza wykazała, że związki hodowców i inne organizacje, którym powierzono prowadzenie ksiąg hodowlanych, jak też uczelnie rolnicze mają znaczący wkład we wdrażaniu Krajowej strategii. Ponadto duże zaangażowanie wykazały wojewódzkie Urzędy Marszałkowskie jak i służby doradztwa rolniczego. Administracja publiczna i agencje rządowe były zaangażowane w wysokim stopniu we wdrażanie i nadzorowanie działań, w zakresie swoich kompetencji.
Źródło:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science; 2016, 55[2]
1898-8830
Pojawia się w:
Annals of Warsaw University of Life Sciences - SGGW. Animal Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of postglacial relict shrub Betula nana revealed by RAPD analysis
Autorzy:
Dabrowska, G
Dzialuk, A.
Burnicka, O.
Ejankowski, W.
Gugnacka-Fiedor, W.
Goc, A.
Powiązania:
https://bibliotekanauki.pl/articles/41579.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Betula nana
genetic diversity
genetic resource
conservation
population genetics
postglacial relict shrub
random amplified polymorphic DNA
Opis:
A sample of Betula nana from the Linie reserve near Dąbrowa Chełmińska, have been fingerprinted using random amplified polymorphic DNA (RAPD). The high level of genetic variation was detected. All individuals had unique genotypes, supporting the generally high resolving power of RAPD’s. For the conservation strategy, information about the distribution of the genetic variation within and among populations plays very important role. Thus, extensive study in other populations of dwarf birch is needed.
Źródło:
Dendrobiology; 2006, 55; 19-23
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of wild Thymus capitatus (Lamiaceae) in Tunisia using molecular markers
Autorzy:
Ben El Hadj Ali, I.
Guetat, A.
Boussaid, M.
Powiązania:
https://bibliotekanauki.pl/articles/41663.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
genetic diversity
wild plant
Thymus capitatus
Lamiaceae
Tunisia
molecular marker
habitat fragmentation
conservation strategy
genetic structure
Opis:
In Tunisia, Thymus capitatus L. populations are severely destroyed due to deforestation and over-collecting. The species occurs in small scattered populations decreasing progressively in size. Yet, no conservation or improvement programs are attempted to preserve and promote the potential value of this resource. In this work, we assessed the genetic diversity of nine Tunisian populations of Thymus capitatus L. from different bioclimates, using 103 polymorphic randomly amplified polymorphic DNA (RAPD) loci. The analysis of the genetic variation within and among populations is primordial to elaborate conservation and improvement programs. The species showed a low diversity within populations (0.276
Źródło:
Dendrobiology; 2012, 68
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variation of the relict and endangered population of Chamaedaphne calyculata (Ericaceae) in Poland
Autorzy:
Szczecinska, M
Sawicki, J.
Wasowicz, K.
Holdynski, C.
Powiązania:
https://bibliotekanauki.pl/articles/41179.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
plant species
rare species
Polska
endangered population
relict population
genetic variation
Chamaedaphne calyculata
Ericaceae
genetic diversity
conservation
geographic distribution
Opis:
Chamaedaphne calyculata is rare and endangerded species of Polish flora. The genetic variation within and among ten polish population of leatherleaf was analysed by ISSR and ISJ markers. The analysis revealed a total of 160loci with an average of 13.3 bands per primer. We expected a low level of genetic diversity of this narrowly distributed species in Poland, but our results indicate that Ch. calyculata revealed a high level of genetic diversity at species level (P=88.7%of polymorphic loci, AE=1.468, HE=0.290). At the population level, the variation of Ch. calyculata was significantly lower (P=27.6%, AE=1.140, HE=0.098). There was significant correlation between ecological properties (population size; number of flowering ramets) and genetic diversity parameters. Analysis of molecular variance showed that most of variation (62%) in Ch. calyculata occurred among population. Gene flow (Nm) between the ten studied populations, determined based on the GST index, was very low at 0.239. It indicated that the fragmentation and isolation of populations might result from specific evolutionary history of this plant and postglacial recolonization
Źródło:
Dendrobiology; 2009, 62; 23-33
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Farm animal breeding of genetic resources for young farmers in Taiwan
Hodowla zwierząt gospodarskich z zasobów genetycznych dla młodych rolników na Tajwanie
Autorzy:
Wu, M.
Powiązania:
https://bibliotekanauki.pl/articles/3132732.pdf
Data publikacji:
2021
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Taiwan
farm animal
livestock
poultry
animal breeding
farm animal genetic resources
conservation
selection
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2021, 20, 3; 97-104
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 26

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