Heavy genetic load associated with the subspecific differentiation of japonica rice (Oryza sativa ssp japonica L.)

doi:10.1093/jxb/erl046

CORC > 中国农业科学院 > 作物科学研究所

	Heavy genetic load associated with the subspecific differentiation of japonica rice (Oryza sativa ssp japonica L.)
	Xu, Jian-Long; Wang, Jun-Min; Sun, Ye-Qing; Wei, Li-Jun; Luo, Rong-Ting; Zhang, Ming-Xian; Li, Zhi-Kang
刊名	JOURNAL OF EXPERIMENTAL BOTANY
	2006
卷号	57 期号:11 页码:2815-2824
关键词	genetic load mutagenesis gamma-rays radiation damage radiosensitivity spaceflight
ISSN号	0022-0957
DOI	10.1093/jxb/erl046
通讯作者	Xu, Jian-Long
英文摘要	Genetic load in the genome of the model species, rice, was genetically dissected by mapping quantitative trait loci (QTLs) affecting the radiosensitivity of 226 recombinant inbred lines (RILs) to gamma-ray- and spaceflight-induced radiation. The parents and RILs varied considerably in their radiosensitivity to gamma-ray irradiation. A total of 28 QTLs affecting the two index traits, seedling height (SH) and seed fertility (SF), of radiosensitivity were identified. The japonica parent, Lemont, was much more sensitive to gamma-ray irradiation than the indica parent, Teqing, and its alleles at almost all QTLs were associated with increased radiosensitivity, suggesting a much higher genetic load in the japonica genome of rice. Six QTLs (QSh2a, QSh2b, QSh5a, QSh7, QSf3b, and QSf10b) were located in the genomic regions particularly sensitive to radiation and thus might represent possible 'mutation hot spots' in the japonica genome. Detailed characterization of these genomic regions may shed light on the evolution and subspecific differentiation of rice.
学科主题	Plant Sciences ; PLANT SCIENCES
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000239901500033
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5725]
专题	作物科学研究所
作者单位	(1)Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Gener Resources & Genet Improvemen, Beijing 100081, Peoples R China;(2)Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China;(3)Harbin Inst Technol, Harbin 150001, Peoples R China;(4)Int Rice Res Inst, Manila, Philippines
推荐引用方式 GB/T 7714	Xu, Jian-Long,Wang, Jun-Min,Sun, Ye-Qing,et al. Heavy genetic load associated with the subspecific differentiation of japonica rice (Oryza sativa ssp japonica L.)[J]. JOURNAL OF EXPERIMENTAL BOTANY,2006,57(11):2815-2824.
APA	Xu, Jian-Long.,Wang, Jun-Min.,Sun, Ye-Qing.,Wei, Li-Jun.,Luo, Rong-Ting.,...&Li, Zhi-Kang.(2006).Heavy genetic load associated with the subspecific differentiation of japonica rice (Oryza sativa ssp japonica L.).JOURNAL OF EXPERIMENTAL BOTANY,57(11),2815-2824.
MLA	Xu, Jian-Long,et al."Heavy genetic load associated with the subspecific differentiation of japonica rice (Oryza sativa ssp japonica L.)".JOURNAL OF EXPERIMENTAL BOTANY 57.11(2006):2815-2824.