Temat: marker-assisted selection - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Zastosowanie markerów DNA w selekcji marchwi z cechą cytoplazmatycznej męskiej sterylności typu płatkowego
The use of DNA markers in the selection of carrot lines with cytoplasmic male sterility trait
Autorzy:: Szczechura, W.
Nowakowska, M.
Nowak, K.
Kamiński, P.
Nowak, R.
Kozik, E.U.
Powiązania:: https://bibliotekanauki.pl/articles/2119577.pdf
Data publikacji:: 2019
Wydawca:: Instytut Ogrodnictwa
Tematy:: CMS
carrot
DNA markers
marker-assisted selection (MAS)
Opis:: Cytoplasmic male sterility (CMS) is a maternally inherited trait in which a plant is unable to produce functional pollen. It occurs in many plants, including carrots. The expression of this trait depends on environmental conditions, especially temperature – therefore, DNA markers become an excellent tool for selecting carrot genotypes with this feature. In this study, we used seventeen DNA markers available in the literature, linked with various mitochondrial DNA sequences that are associated with the CMS trait. Their amplification was tested on male sterile and male fertile plants. Only five markers – A321/392, I214/401/435, K751, N795, O790 – correctly identified the tested genotypes. They can be used as selection tools in carrot breeding programs.
Źródło:: Zeszyty Naukowe Instytutu Ogrodnictwa; 2019, 27; 53-62
2300-5882
2391-8969
Pojawia się w:: Zeszyty Naukowe Instytutu Ogrodnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Increasing the efficiency of potato breeding through marker assisted selection - general thoughts. Molecular markers for late blight resistance - when applied for breeders?
Autorzy:: Trognitz, Bodo R.
Trognitz, Friederike Ch.
Powiązania:: https://bibliotekanauki.pl/articles/2198962.pdf
Data publikacji:: 2004-12-20
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: marker assisted selection
potato breeding
potato late blight resistance
Opis:: Despite many breathtaking breakthroughs in the area of crop genetics and genomics, plant breeding still widely depends on the methods that had been worked out almost a century ago. This is not because commercial plant breeders are overly conservative but because the new knowledge lacks efficient and economical tools that would permit their application in practice. Breeders desire supporting technologies that would facilitate laborious and time-consuming screening in the field and laboratory. In particular, resistance screening often cannot be performed satisfactorily as the necessary disease pressure and appropriate pathogen populations may be unavailable. In potato breeding, specific and often complex resistances need to be developed, at the same time maintaining high levels of quality and culinary characteristics. Therefore, it is worthwhile to revisit the facts that comprise the progress in genetics of disease resistance and to analyze current technologies of genotyping and marker assisted selection, with the objective to detect those parameters that limit the efficiency of methods for commercial application. Selection in potato for resistance to late blight will be highlighted as an example. Maps, genes and markers for resistance have been identified – how universal are they? Single genes and quantitative trait loci for race-specific and race non-specific resistance are known – how efficient is their use? Marker technologies based on polymerase chain reaction and DNA hybridization have been developed that are far more efficient than first-generation technologies – is their use in commercial breeding economical? By discussing these issues concepts will emerge that help to pave the way for marker assisted selection (MAS) in potato breeding. The most important parameters required for economical MAS include to have a clear idea of the traits to be selected for, to use proven, reliable markers, to have in place a robust system for the collection and management of DNA samples, and to use technologies whose total cost is below or equal to the cost of the conventional methods. The most striking advantages of MAS are that a breeder will obtain more information than by conventional methodology, the information will be more precise, field labour can be saved and in that way the breeding process will be intensified. The implementation of the new technology could lead to even closer collaboration of breeders and scientists. Possible disadvantages include the relative increase of laboratory and computer work within the breeding program, and possibly higher costs during the implementation phase of the new technology.
Źródło:: Plant Breeding and Seed Science; 2004, 50; 95-105
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Marker-assisted selection for scald (Rhynchosporium commune L.) resistance gene(s) in barley breeding for dry areas
Autorzy:: Sayed, H.
Baum, M.
Powiązania:: https://bibliotekanauki.pl/articles/65161.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: marker-assisted selection
marker aided selection zob.marker-assisted selection
leaf blotch
scald zob.leaf blotch
Rhynchosporium commune
resistance gene
barley
plant breeding
dry climate
foliar disease
plant disease
fungal disease
Opis:: Barley scald, caused by Rhynchosporium commune is one of the most prevalent diseases in barley (Hordeum vulgare L.) worldwide. The primary loss from scald is reduced yield, which can exceed 25% in dry areas. In our earlier studies, we developed a low-resolution linkage map for recombinant inbred lines of the cross Tadmor/WI2291. Quantitative trait loci (QTLs) for scald were localized on chromosomes 2H and 3H flanked by Simple Sequence Repeat (SSR) markers HVM54 and Bmac0093b on 2H and HVLTPP8, HVM62 and Bmag0006 on 3H. These chromosome 3H markers were found to be located close to the Rrs1 − R. commune resistance gene(s) on chromosome 3H. In this study, 10 homozygous resistant and 10 homozygous susceptible plants each from the F7 population of Tadmor/ Sel160, a panel of 23 barley varieties used routinely in the International Centre for Agricultural Research in the Dry Areas (ICARDA) breeding program and three populations were used for scald resistance screening using 25 DNA markers that are located very close to scald resistance gene(s) on barley chromosomes. Only five of those markers clearly discriminated co-dominantly between resistant and susceptible plants. These markers, Ebmac0871- SSR, HVS3-SCAR, Bmag0006-SSR, reside on different arms of barley chromosome 3H. Ebmac871 is localized on the short arm of 3H and HVS3 and Bmag0006 are localized on the long arm of 3H. This result indicates that the scald resistance genes which they tag are probably close to the centromeric region of this chromosome. Scald resistance from several sources map to the proximal region of the long arm of chromosome 3H, forming the complex Rrs1 locus. The availability of highly polymorphic markers for the discrimination of breeding material would be extremely useful for barley breeders to select for the trait at the DNA level rather than relying on phenotypic expression and infection reaction.
Źródło:: Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Association studies between polymorphic variants of TLR-encoding genes and mastitis in dairy cattle. An overview of the current state of knowledge
Badania asocjacyjne pomiędzy polimorficznymi wariantami genów kodujących TLR a mastitis u bydła mlecznego.Podsumowanie stanu wiedzy
Autorzy:: Stanisławczyk, A.
Rączka, A.
Wojdak-Maksymiec, K.
Powiązania:: https://bibliotekanauki.pl/articles/29433584.pdf
Data publikacji:: 2023
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: dairy cattle
animal disease
mastitis
marker assisted selection
toll-like receptor
polymorphism
Źródło:: Acta Scientiarum Polonorum. Zootechnica; 2023, 22, 1; 17-24
1644-0714
Pojawia się w:: Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Selekcja genomowa w hodowli drzew leśnych - podstawowe założenia, problemy i perspektywy
Genomic selection in forest tree breeding - basic principles, problems and future prospects
Autorzy:: Żukowska, W.B.
Wójkiewicz, B.
Lewandowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/978931.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: breeding value
genetic gain
genetic markers
marker−assisted selection
quantitative trait locus
single
nucleotide polymorphism
Opis:: All tree breeders cope with the same challenge of the very long time interval of a single breeding cycle. What is more, trees are long−lived, with desirable breeding traits expressing late during their life cycle. Increasing problems with climate change, globalization or economic growth have forced us to accelerate tree breeding and improve selection precision, both of which can be achieved by genomic selection (GS). The idea of GS was introduced nearly 20 years ago as an extension of marker−assisted selection (MAS) in order to advance breeding technologies using genetic markers. Unlike MAS, which exploits only a set of marker−trait associations, GS relies on a high number of genetic markers that are spread throughout the entire length of the genome. All markers effects are assessed simultaneously in order to build a precise model that allows prediction of genetic estimated breeding value of a particular individual using genetic data only. GS has already revolutionized dairy cattle breeding resulting in remarkable improvements across multiple traits and is becoming more and more common in crop production. We now know that genetic architecture of quantitative traits is complex, but recent advances in genomics have made it possible to deal with this problem in an unprecedented way. There are certain concerns regarding GS in forest tree species that include genotype−environment (G×E) interaction and the usefulness of the predictive model built up by GS in the next generation of trees. Nevertheless, experimental results obtained so far have shown that the genetic gain per unit time as well as selection precision can be substantially increased. Here we present the basic principles of GS for forest tree species, giving examples of studies carried out so far and discussing problems and future possibilities that GS may soon open up for forest tree breeders.
Źródło:: Sylwan; 2020, 164, 05; 384-391
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Selection of Potato Parental Lines With Complex Resistances to Potato Pathogens and Pests
Autorzy:: Flis, Bogdan
Powiązania:: https://bibliotekanauki.pl/articles/2199714.pdf
Data publikacji:: 2017-12-20
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: Globodera rostochiensis Ro1
Phytophthora infestans
pre-breeding
marker assisted selection
PVX
PVY
PVM
PVS
Opis:: The efficiency of breeding new potato cultivars may be increased by pre-breeding that is by developing parental lines, which have new traits, not present in the genetic pool available for breeders or have new combinations of genes, or have improved level of economically important traits. The use of parental lines in commercial breeding programs is expected to ensure the biological progress in the newly created cultivars of potato. At the beginning, the development of parental lines in Młochów Research Center of Plant Breeding and Acclimatization Institute – Nation-al Research Institute (IHAR-PIB) was focused on resistance to viruses and later on resistance to late blight and other pathogens. The procedures of selecting resistant parental lines are described. These procedures were initially based on purely phenotypic tests for resistance, which lately were supplemented with marker assisted selection (MAS) apply-ing molecular markers linked with some resistance genes.
Źródło:: Plant Breeding and Seed Science; 2017, 76; 57-63
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Eyespot resistance of winter wheat breeding lines evaluated with marker-assisted selection and inoculation tests at the seedling and adult plant stages
Autorzy:: Majka, M.
Kwiatek, M.
Korbas, M.
Danielewicz, J.
Gawlowska, M.
Goral, T.
Wisniewska, H.
Powiązania:: https://bibliotekanauki.pl/articles/65926.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant disease
fungal disease
eyespot
wheat
Triticum aestivum
resistance
winter wheat
plant breeding
breeding line
marker-assisted selection
inoculation
seedling
adult plant
Oculimacula yallundae
Oculimacula acuformis
Opis:: Eyespot is one of the most important fungal diseases of the stem base of wheat (Triticum aestivum L.). The presented study clearly demonstrated that the Pch1 gene was the main effective source for reducing the eyespot disease score in the analyzed winter wheat lines. Nevertheless, Pch1 was present only in 8−9% of the investigated lines. Using an isoenzymatic marker and molecular markers, the presence of the Pch1 gene and lack of the Pch2 gene was identified in six lines. Two lines, SMH 9409 and DL 358/13/4, were polymorphic in an isoenzymatic marker study. In the remaining three lines, C 3373/11-1, KBH 15.15 and KBP 1416, the Pch1 gene was identified only with the use of an isoenzymatic marker. Both genes Pch1 and Pch2, as well as the resistant variety Rendezvous, were found in three lines: DD 248/12, KBP 15.2 and STH 4431. In line DD 708/13, the presence of the Pch1 and Pch2 genes was identified, where the association between the Pch1 and the locus of the Xorw5 marker was broken. It was shown that the presence or absence of Pch1 and Pch2 genes did not significantly affect the grain yield (from the plot), although the yield was highest in the presence of both genes. A significant effect of the presence of the Pch1 gene on thousand kernel weight (TKW) was observed. Lines with the Pch1 gene showed significantly higher TKW values than lines without both genes or with the Pch2 gene only.
Źródło:: Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki