Identification of quantitative trait loci for the dead leaf rate and the seedling dead rate under alkaline stress in rice

doi:10.1016/S1673-8527(08)60043-0

	Identification of quantitative trait loci for the dead leaf rate and the seedling dead rate under alkaline stress in rice
	Qi, Dongling 1,2; Guo, Guizhen 3; Lee, Myung-Chul 4; Zhang, Junguo 3; Cao, Guilan 1; Zhang, Sanyuan 3; Suh, Seok-Cheol 4; Zhou, Qingyang 5; Han, Longzhi 1,3
刊名	JOURNAL OF GENETICS AND GENOMICS
	2008
卷号	35 期号:5 页码:299-305
关键词	rice alkaline stress dead leaf rate dead seedling rate microsatellite marker quantitative trait locus (QTL)
ISSN号	1673-8527
DOI	10.1016/S1673-8527(08)60043-0
通讯作者	Qi, Dongling
英文摘要	The quantitative trait loci (QTLs) for the dead leaf rate (DLR) and the dead seedling rate (DSR) at the different rice growing periods after transplanting under alkaline stress were identified using an 172:3 population, which included 200 individuals and lines derived from a cross between two japonica rice cultivars Gaochan 106 and Changbai 9 with microsatellite markers. The DLR detected at 20 days to 62 days after transplanting under alkaline stress showed continuous normal or near normal distributions in F(3) lines, which was the quantitative trait controlled by multiple genes. The DSR showed a continuous distribution with 3 or 4 peaks and was the quantitative trait controlled by main and multiple genes when rice was grown for 62 days after transplanting under alkaline stress. Thirteen QTLs associated with DLR were detected at 20 days to 62 days after transplanting under alkaline stress. Among these, qDLR9-2 located in RM5786-RM160 on chromosome 9 was detected at 34 days, 41 days, 48 days, 55 days, and 62 days, respectively; qDLR4 located in RM3524-RM3866 on chromosome 4 was detected at 34 days, 41 days, and 48 days, respectively; qDLR7-1 located in RM3859-RM320 on chromosome 7 was detected at 20 days and 27 days; and qDLR6-2 in RM1340-RM5957 on chromosome 6 was detected at 55 days and 62 days, respectively. The alleles of both qDLR9-2 and qDLR4 were derived from alkaline sensitive parent "Gaochan106". The alleles of both qDLR7-1 and qDLR6-2 were from alkaline tolerant parent Changbai 9. These gene actions showed dominance and over dominance primarily. Six QTLs associated with DSR were detected at 62 days after transplanting under alkaline stress. Among these, qDSR6-2 and qDSR8 were located in RM1340-RM5957 on chromosome 6 and in RM3752-RM404 on chromosome 8, respectively, which were associated with DSR and accounted for 20.32% and 18.86% of the observed phenotypic variation, respectively; qDSR11-2 and qDSR11-3 were located in RM536-RM479 and RM2596-RM286 on chromosome 11, respectively, which were associated with DSR explaining 25.85% and 15.41% of the observed phenotypic variation, respectively. The marker flanking distances of these QTLs were quite far except that of qDSR6-2, which should be researched further.
学科主题	Biochemistry & Molecular Biology ; Genetics & Heredity ; BIOCHEMISTRY & MOLECULAR BIOLOGY ; GENETICS & HEREDITY
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000257602600008
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5610]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Germplasm Resources & Biotechnol, NFCRI,Minist Educ, Beijing 100081, Peoples R China 2.Chinese Acad Trop Agr Sci, Rubber Res Inst China, Key Lab Physiol Trop Crops, Minist Agr, Hainan 571737, Peoples R China 3.Jilin Acad Agr Sci, Inst Rice Res, Gongzhuling 136100, Peoples R China 4.Natl Inst Agr Biotechnol, Rural Dev Adm, Suwon 441707, South Korea 5.Sichuan Agr Univ, Dept Hort, Yaan 625014, Peoples R China
推荐引用方式 GB/T 7714	Qi, Dongling,Guo, Guizhen,Lee, Myung-Chul,et al. Identification of quantitative trait loci for the dead leaf rate and the seedling dead rate under alkaline stress in rice[J]. JOURNAL OF GENETICS AND GENOMICS,2008,35(5):299-305.
APA	Qi, Dongling.,Guo, Guizhen.,Lee, Myung-Chul.,Zhang, Junguo.,Cao, Guilan.,...&Han, Longzhi.(2008).Identification of quantitative trait loci for the dead leaf rate and the seedling dead rate under alkaline stress in rice.JOURNAL OF GENETICS AND GENOMICS,35(5),299-305.
MLA	Qi, Dongling,et al."Identification of quantitative trait loci for the dead leaf rate and the seedling dead rate under alkaline stress in rice".JOURNAL OF GENETICS AND GENOMICS 35.5(2008):299-305.