Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice

doi:10.1111/jipb.12190

	Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice
	Xie, Lixia 1; Tan, Zhengwei 1; Zhou, Yuan 1; Xu, Rongbao 2; Feng, Laibao ; Xing, Yongzhong 3; Qi, Xiaoquan
	2014
发表期刊	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN	1672-9072
卷号	56 期号:8 页码:749-759
摘要	Seed vigor is an index of seed quality that is used to describe the rapid and uniform germination and the establishment of strong seedlings in any environmental conditions. Strong seed vigor in low-temperature germination conditions is particularly important in direct-sowing rice production systems. However, seed vigor has not been selected as an important breeding trait in traditional breeding programs due to its quantitative inherence. In this study, we identified and mapped eight quantitative trait loci (QTLs) for seed vigor by using a recombinant inbred population from a cross between rice (Oryza sativa L. ssp. indica) cultivars ZS97 and MH63. Conditional QTL analysis identified qSV-1, qSV-5b, qSV-6a, qSV-6b, and qSV-11 influenced seedling establishment and that qSV-5a, qSV-5c, and qSV-8 influenced only germination. Of these, qSV-1, qSV-5b, qSV-6a, qSV-6b, and qSV-8 were low-temperature-specific QTLs. Two major-effective QTLs, qSV-1, and qSV-5c were narrowed down to 1.13-Mbp and 400-kbp genomic regions, respectively. The results provide tightly linked DNA markers for the marker-assistant pyramiding of multiple positive alleles for increased seed vigor in both normal and low-temperature germination environments.
关键词	Conditional quantitative trait locus mapping germination seedling establishment seed vigor rice
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
DOI	10.1111/jipb.12190
收录类别	SCI
语种	英语
WOS关键词	RECOMBINANT INBRED LINES ; LOW-TEMPERATURE GERMINABILITY ; MOLECULAR DISSECTION ; GENETIC-BASIS ; PLANT HEIGHT ; TOLERANCE ; QTLS
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号	WOS:000340244400004
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1744-7909
资助机构	National High Technology Research and Development Program of China [2012AA10A304]
作者邮箱	xqi@ibcas.ac.cn
引用统计	被引频次：74[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27281
专题	中科院植物分子生理学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shandong Televis Univ, Dept Continuing Educ, Jinan 250014, Peoples R China 4.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China
推荐引用方式 GB/T 7714	Xie, Lixia,Tan, Zhengwei,Zhou, Yuan,et al. Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2014,56(8):749-759.
APA	Xie, Lixia.,Tan, Zhengwei.,Zhou, Yuan.,Xu, Rongbao.,Feng, Laibao.,...&Qi, Xiaoquan.(2014).Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,56(8),749-759.
MLA	Xie, Lixia,et al."Identification and fine mapping of quantitative trait loci for seed vigor in germination and seedling establishment in rice".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 56.8(2014):749-759.

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