Frequent occurrence of unreduced gametes in Triticum turgidum–Aegilops tauschii hybrids

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	Frequent occurrence of unreduced gametes in Triticum turgidum–Aegilops tauschii hybrids
	张连全; 刘登才; 郑有良; 颜泽红; 代授芬; Yun-Fang Li; Qi Jiang; Ya-Qing Ye; Yang Yen
	2010-04-04
发表期刊	Euphytica
ISSN	0014-2336
卷号	172 页码:285-294
其他摘要	Spontaneous chromosome doubling via union of unreduced (2n) gametes has been thought to be the way that common wheat (Triticum aestivum L.) was originated from the hybridization of T. turgidum L. with Ae. tauschii Cosson. Previous works have observed unreduced gametes in F1 hybrids of Ae. tauschii with six of the eight T. turgidum subspecies. It is not clear, however, whether the formation of these unreduced gametes is a norm in the F1 hybrids. In the present study, we tried to answer this question by assessing the occurrence frequency of unreduced gametes in 115 T. turgidum–Ae. tauschii hybrid combinations, involving 76 genotypes of seven T. turgdium subspecies and 24 Ae. tauschii accessions. Our data show that these hybrid combinations differed significantly (P B 0.01, F = 11.40) in selfed seedset, an indicator for production of unreduced gametes. This study clearly showed that meiotic restitution genes are widely distributed within T. turgidum. However, significant differences were found betweenas well as within T. turgidum subspecies and in the interaction of the T. turgidum genotypes with those of Ae. taushii. The possible application of the meiotic restitution genes from T. turgidum in production of double haploids is also discussed.
收录类别	SCI
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/2050
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	张连全,刘登才,郑有良,等. Frequent occurrence of unreduced gametes in Triticum turgidum–Aegilops tauschii hybrids[J]. Euphytica,2010,172:285-294.
APA	张连全.,刘登才.,郑有良.,颜泽红.,代授芬.,...&Yang Yen.(2010).Frequent occurrence of unreduced gametes in Triticum turgidum–Aegilops tauschii hybrids.Euphytica,172,285-294.
MLA	张连全,et al."Frequent occurrence of unreduced gametes in Triticum turgidum–Aegilops tauschii hybrids".Euphytica 172(2010):285-294.

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