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Wyszukujesz frazę "Addition" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
The influence of additions of rye chromosomes on plant dry mat ter and root size in bread wheat
Autorzy:
Oracka, Teresa
Łapiński, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/2198992.pdf
Data publikacji:
2005-12-22
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
addition lines
chromosome
root system
rye
wheat
Opis:
The toleration of poor soil and high efficiency of mineral nutrients use of rye has been successfully transferred to triticale, but only one rye chromosome (1RS) has been used in wheat breeding. We started studies on identification of other rye chromosomes potentially useful in improvement of wheat, with special emphasis on root characters. We analyzed dry matter, length and number of roots (seminal and adventitious roots separately), together with plant dry matter, in two sets of disomic wheat-rye addition lines (CS-‘Blanco’ and CS-‘Imperial’). Plants were grown in hydroponic culture. In relation to the ‘Chinese Spring’ (CS) wheat, all the addition lines showed decrease of plant and root size parameters. The chromosomes 5R and 7R were best tolerated in wheat, but they caused a decrease of root proportion in plant. The 4R addition was the least viable one, but the root/plant ratio was higher than in wheat. The results were influenced mainly by interaction between homoeology group and cultivar of origin of rye chromosomes. The highest interactions of this kind were found in the 5R and 6R additions.
Źródło:
Plant Breeding and Seed Science; 2005, 52; 3-14
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of added rye chromosomes on physical properties of kernels of addition lines T.aestivum Grana - S.cereale Dankowskie Zlote
Autorzy:
Miazga, D
Szot, B
Powiązania:
https://bibliotekanauki.pl/articles/2047715.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chromosome
rye
physical property
wheat
Secale cereale
Triticale
Triticum aestivum
addition line
gene localization
Opis:
The paper concerns the influence of added rye chromosomes on physical properties of kernels of the addition lines T. eastivum Grana - S. cereale Dańkowskie Złote 1R", 2R", 3R", 3RS", 4R", 5R", 6R", and 6RL", as well as initial forms: wheat cv. Grana, rye cv. Dańkowskie Złote and octoploid triticale Grana × Dańkowskie Złote. Kernels from each form, were analysed for the following features: basic geometric dimensions of kernels, 100-kernel weight and kernel volume; surface roughness, index of kernel damage and mechanical strength (determined by maximum force, force within elasticity limits, maximum deformation, elastic deformation, energy causing deterioration of kernel structure). Wheat lines with added rye chromosomes differed from one another and from the initial form wheat cv. Grana in basic geometric dimensions. The lines 6R" and 6RL" had a distinctly higher 100-kernel weight and kernel volume than their initial forms. All the addition lines and octoploid triticale were characterised by markedly higher indices of external damages than the wheat cv. Grana. The mechanical strength of addition line kernels also varied considerably.
Źródło:
Journal of Applied Genetics; 1996, 37, 1; 37-47
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transfer of chromosomes of the A and B genomes of wheat to tetraploid rye
Autorzy:
Apolinarska, B
Powiązania:
https://bibliotekanauki.pl/articles/2047251.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chromosome transfer
translocation
rye
substitution
addition
tetraploid triticale
wheat
crossing
hybrid
B genome
A genome
tetraploid rye
Opis:
Tetraploid rye was crossed with different tetraploid triticale lines. The F₁ generation of tetraploid rye × tetraploid triticale hybrids was backcrossed with 4x rye. After backcrossing, all BC₁-F₁ plants were subjected to open pollination, whereas in the BC₁-F₂ generations only plants with wheat chromosomes in their karyotypes were open-pollinated. Substitution, addition and addition-substitution lines of wheat chromosomes in tetraploid rye were isolated from the F₂ and F₃ of BC₁. In 60 plants of BC₁-F₂, 59 chromosomes from the A genome and 9 from the B genome of wheat were recovered. The wheat chromosomes were monosomic except for five plants which were disomic, viz. 1A and 5A in two plants each, and a translocated 3AS/5AL in one plant. In 235 BC₁-F₃ plants, 174 wheat addition and substitution chromosomes were found, 143 from the A genome and 31 from the B genome. All wheat chromosomes except 3A from the A genome and four chromosomes from the B genome - 2B, 3B, 5B and 7B were recovered. The number of substitutions ranged from one to four per plant, only two plants having four. In the group of addition plants the number of added wheat chromosomes ranged from one to two, and in the case of addition-substitution plants — from two to four. Wheat chromosomes occurred in monosomic form, except 10 plants. Six substitution plants were disomic for 1 A, 2A, 5A, 7A, 2B and 3B, respectively. One was disomic for 1A and 5A in two addition plants. Two addition-substitution plants were double disomic: 1A and 5A - in one, and 1A and 3B in the other. In the BC₁-F₃ generation, 23 different translocations were found, four of which occurred between wheat chromosomes and the remaining 19 - between wheat and rye chromosomes. Translocated chromosomes were monosomic, except four plants. Two of them were disomic for 3AS/4RL, one for 4AS/4RS and one for 7AS/7RS. The fertility of both addition and substitution plants ranged from 0 to 38.0 seeds/spike, regardless of the chromosome number, with a mean of 9.61 seeds/spike. Plants with 28 chromosomes showed singnificantly higher fertility than plants with 29 and more chromosomes, except additoion plants with chromosomes 5A and 5B. The analysis of the influence of particular wheat chromosomes on plant fertility showed that both substitution and addition plants with chromosome 6A had the highest average fertility, while plants with chromosome 2B in substitution lines as well as plants with chromosome 2A in addition and addition-substitution lines had the lowest fertility.
Źródło:
Journal of Applied Genetics; 1996, 37, 4; 345-356
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic regulation of alpha-amylase synthesis in rye [Secale cereale L.] grain
Autorzy:
Masojc, P
Stojalowski, S
Lapinski, M
Miazga, D
Powiązania:
https://bibliotekanauki.pl/articles/2047279.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
enzyme synthesis
activity
chromosome
rye
Secale cereale
crossing
alpha-amylase
sprouting line
duplicate gene
addition line
genetic regulation
Opis:
Genetic analysis of two rye interline crosses and a set of wheat/rye chromosomal addition lines was performed to reveal the mechanism underlying wide variation range of alpha-amylase activity in sound grain. The long arm of chromosome 6R was found to be responsible for increased enzyme synthesis during late stages of triticale grain maturation. Only nuclear genes seemed to control alpha-amylase activity, as reciprocal crosses between rye lines showed no maternal effects. Low enzyme activity showed complete dominance over high level of its synthesis. Segregation ratios, observed in F₂ and BC₁ crosses, indicated that recessive alleles at two independent duplicative loci underlie intensive alpha-amylase production.
Źródło:
Journal of Applied Genetics; 1996, 37, 2; 141-152
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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