The origin of weedy rice Ludao in China deduced by genome wide analysis of its hybrid sterility genes

doi:10.1270/jsbbs.55.409

CORC > 中国农业科学院 > 作物科学研究所

	The origin of weedy rice Ludao in China deduced by genome wide analysis of its hybrid sterility genes
	Zhu, SS; Jiang, L; Wang, CM; Zhai, HQ; Li, DT; Wan, JM
刊名	BREEDING SCIENCE
	2005
卷号	55 期号:4 页码:409-414
关键词	Oryza sativa hybrid sterility weedy rice molecular marker genetic analysis
ISSN号	1344-7610
DOI	10.1270/jsbbs.55.409
通讯作者	Zhu, SS
英文摘要	The authors report here a case of hybrid sterility between an indica cultivar, IR36 and a weedy strain, Ludao, which naturally grows in and around farms in Jiangsu province, China. A genome-wide analysis was performed with a backcross population of IR36/Ludao//IR36 using a total of 151 simple sequence repeat (SSR) markers covering the entire rice linkage map. As a result, two loci were found to induce independently the hybrid sterility via female gamete abortion. Of the two loci, the locus on chromosome 6 corresponded to S10 according to its chromosomal location, while the other one on chromosome 7 was different from all the previously reported hybrid sterility loci, and was designated as S30(t). Based on the allelic interaction which causes female gamete abortion, two alleles were identified: S30(t)-i in IR36 and S30(t)-j in Ludao. In the heterozygote, S30(t)-i/S30(t)-j, which was semi-sterile, female gametes carrying S30(t)-j were partially aborted. A javanica variety, Ketan Nangka, and an Aus variety, N22, carried the neutral allele, S30(t)-n. Thus, Ludao was found to harbor a hybrid sterility gene different from that of existing cultivars in China, as an evidence of its origin from an ancient wild rice variety.
学科主题	Agronomy ; Plant Sciences ; AGRONOMY ; PLANT SCIENCES
语种	英语
出版者	JAPANESE SOC BREEDING
WOS记录号	WOS:000234834000004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5757]
专题	作物科学研究所
作者单位	(1)Nanjing Agr Univ, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China;(2)Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Zhu, SS,Jiang, L,Wang, CM,et al. The origin of weedy rice Ludao in China deduced by genome wide analysis of its hybrid sterility genes[J]. BREEDING SCIENCE,2005,55(4):409-414.
APA	Zhu, SS,Jiang, L,Wang, CM,Zhai, HQ,Li, DT,&Wan, JM.(2005).The origin of weedy rice Ludao in China deduced by genome wide analysis of its hybrid sterility genes.BREEDING SCIENCE,55(4),409-414.
MLA	Zhu, SS,et al."The origin of weedy rice Ludao in China deduced by genome wide analysis of its hybrid sterility genes".BREEDING SCIENCE 55.4(2005):409-414.