Differential effects of Aegilops tauschii genotypes on maturing-time in synthetic hexaploid wheats
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- Fujiwara Yuki
- Department of Bioscience, Fukui Prefectural University
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- Shimada Sanae
- Department of Bioscience, Fukui Prefectural University
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- Takumi Shigeo
- Graduate School of Agricultural Science, Kobe University
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- Murai Koji
- Department of Bioscience, Fukui Prefectural University
Bibliographic Information
- Other Title
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- Differential effects of <italic>Aegilops tauschii</italic> genotypes on maturing-time in synthetic hexaploid wheats
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Abstract
Bread wheat (Triticum aestivum) is a hexaploid species with A, B and D genomes. Therefore, most bread wheat genes are present in the genome as triplicated homoeologous genes (homoeologs) derived from the ancestral A, B, and D genome diploid species. Maturing-time, which is associated with flowering-time and the grain-filling period, is one of the most important agronomic traits for wheat breeding. Here, the effects of homoeologs derived from D genome diploid species on maturing-time in bread wheat were examined in synthetic hexaploid wheats obtained by crossing tetraploid durum wheat T. turgidum ssp. durum cv. Langdon and three accessions of the D genome diploid species (Aegilops tauschii). After vernalization, the synthetic hexaploid wheat derived from an early-flowering D genome donor showed an early-flowering phenotype among the synthetic hexaploids, whereas the synthetic wheat derived from a late-flowering D genome donor was late-flowering among the synthetic hexaploids. This suggests that the early-flowering phenotype in hexaploid wheat is affected by the homoeolog for early-flowering in the D genome donor. In contrast, maturing-time and grain-filling period in the synthetic hexaploids did not correspond with those of the D genome donors, suggesting that these traits are controlled by the interaction between homoeologs on the A, B and D genomes in hexaploid wheat.<br>
Journal
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- Breeding Science
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Breeding Science 60 (3), 286-292, 2010
Japanese Society of Breeding
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Details 詳細情報について
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- CRID
- 1390001204722108672
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- NII Article ID
- 130004057107
- 10030691311
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- NII Book ID
- AA11317194
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- ISSN
- 13473735
- 13447610
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- NDL BIB ID
- 10810993
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed