Genome-Wide Responses to Selection and Genetic Networks Underlying Submergence Tolerance in Rice

doi:10.3835/plantgenome2014.10.0066

	Genome-Wide Responses to Selection and Genetic Networks Underlying Submergence Tolerance in Rice
	Wang, Wensheng 1; Fu, Binying 1; Ali, Jauhar 2; Xu, Jianlong 1; Gao, Yongming 1; Zheng, Tianqing 1; Zhang, Fan 1; Li, Zhikang 1,2
刊名	PLANT GENOME
	2015
卷号	8 期号:2 页码:-
ISSN号	1940-3372
DOI	10.3835/plantgenome2014.10.0066
通讯作者	Wang, Wensheng
英文摘要	Submergence is an important factor limiting rice (Oryza sativa L.) yield in many rain-fed lowland areas of Asia. Here we explored the genetic basis of submergence tolerance (ST) in rice and facilitated simultaneous improvement of ST of rice. The genome-wide patterns of donor introgressions in 162 backcross (BC) progenies selected for ST from 12 populations of nine crosses between three recipients and three donors were characterized using simple sequence repeat (SSR) markers. The genome-wide responses of donor alleles to strong phenotypic selection for ST were reflected in three aspects: (i) significant over introgression of the donor alleles at 295 loci in 167 functional genetic units (FGUs) across the rice genome, (ii) greatly increased homozygosity or loss of heterozygosity genome-wide, and (iii) pronounced nonrandom associations between or among the detected ST loci, which led us to discovery of putative genetic networks (multilocus structures) underlying ST of rice. Our results suggest that ST of rice is controlled by large numbers of loci involved in multiple positively regulated signaling pathways. Restoration of one or more of these broken pathways in the BC progeny by genetic complementation from introgressed functional donor alleles at ST loci provide an appropriate explanation for transgressive segregation of ST and other complex traits in rice.
学科主题	Plant Sciences ; Genetics & Heredity
语种	英语
出版者	CROP SCIENCE SOC AMER
WOS记录号	WOS:000358444200012
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4696]
专题	作物科学研究所_分子生物学系
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 2.Int Rice Res Inst, Manila, Philippines
推荐引用方式 GB/T 7714	Wang, Wensheng,Fu, Binying,Ali, Jauhar,et al. Genome-Wide Responses to Selection and Genetic Networks Underlying Submergence Tolerance in Rice[J]. PLANT GENOME,2015,8(2):-.
APA	Wang, Wensheng.,Fu, Binying.,Ali, Jauhar.,Xu, Jianlong.,Gao, Yongming.,...&Li, Zhikang.(2015).Genome-Wide Responses to Selection and Genetic Networks Underlying Submergence Tolerance in Rice.PLANT GENOME,8(2),-.
MLA	Wang, Wensheng,et al."Genome-Wide Responses to Selection and Genetic Networks Underlying Submergence Tolerance in Rice".PLANT GENOME 8.2(2015):-.