Isolation of a major genetic interaction associated with an extreme phenotype using assorted F2 populations in rice

Ota, Yuya; Ishiguro, Seiya; Aoyama, Eiko; Aiba, Ryosuke; Iwashiro, Reika; Tanabata, Takanari; Takamure, Itsuro; Fujino, Kaien; Kishima, Yuji

Isolation of a major genetic interaction associated with an extreme phenotype using assorted F2 populations in rice

Ota, Yuya; Ishiguro, Seiya; Aoyama, Eiko et al.

Molecular Breeding, 2014, 33(4), 997-1003

Permalink : https://hdl.handle.net/2115/60043

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アクセス権	open access
URI	https://hdl.handle.net/2115/60043
タイトル	Isolation of a major genetic interaction associated with an extreme phenotype using assorted F2 populations in rice
著者	Ota, Yuya ; Ishiguro, Seiya ; Aoyama, Eiko ; Aiba, Ryosuke ; Iwashiro, Reika ; Tanabata, Takanari ; Takamure, Itsuro ; Fujino, Kaien ; Kishima, Yuji
著者名 Ota, Yuya
著者名 Ishiguro, Seiya
著者名 Aoyama, Eiko
著者名 Aiba, Ryosuke
著者名 Iwashiro, Reika
著者名 Tanabata, Takanari
著者名 Takamure, Itsuro
著者名 Fujino, Kaien
著者名 Kishima, Yuji
言語	英語
キーワード	Assorted F2 populations
	Extreme phenotype
	Heading date
	Ghd7
	Ehd1
	Rice
発行日	2014-04
出版者	Springer
収録物名	Molecular Breeding
巻(号)	33(4)
ページ	997-1003
抄録	Detection of quantitative trait loci (QTLs) is dependent on the materials used in the analysis, as different combinations of parental materials may lead to different outcomes in QTLs for the same trait. On the other hand, an extreme phenotype associated with a given trait implies the potential involvement of a particular allele in various allelic interactions. A genetic factor associated with such an extreme phenotype may frequently be identified from various genetic populations consisting of different parental combinations. In this study, we attempted to uncover the genetic factor associated with extremely early heading date in rice, using various F2 populations. Heading date in rice has been characterized by at least 19 QTLs, from which 12 genes have been identified. A58, a rice strain with an extremely early heading date, is adapted to Hokkaido, the northernmost limit of rice cultivation. Six F2 populations derived from crosses of A58 with six other strains displayed a range of heading dates. Genotyping using 19 QTL markers indicated that the A58 allele of the Ghd7 locus was present in most F2 individuals exhibiting extremely early heading dates. This analysis also demonstrated that when the wild-type Ehd1 allele was present, the Ghd7 allele from A58 accelerated floral induction. The results of this study demonstrate that assorted F2 populations are valuable materials for comprehensive genotyping to explore major genetic factors for extreme phenotypes, and that this methodology is broadly applicable to other unknown traits.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	The final publication is available at Springer via http://dx.doi.org/10.1007/s11032-013-9998-6
PISSN	1380-3743
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1007/s11032-013-9998-6