Identification of QTL regions for seedling root traits and their effect on nitrogen use efficiency in wheat (Triticum aestivum L.)

doi:10.1007/s00122-018-3183-6

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 食品安全与环境治理领域 > 农业生物技术研究

	Identification of QTL regions for seedling root traits and their effect on nitrogen use efficiency in wheat (Triticum aestivum L.)
	Fan, Xiaoli 4; Zhang, Wei 1,2; Zhang, Na 1,2; Chen, Mei 1; Zheng, Shusong 2; Zhao, Chunhua 3; Han, Jie 1; Liu, Jiajia 1; Zhang, Xilan 1; Song, Liqiang 1,2
刊名	THEORETICAL AND APPLIED GENETICS
	2018-12
卷号	131 期号:12 页码:2677-2698
ISSN号	0040-5752
DOI	10.1007/s00122-018-3183-6
产权排序	1
文献子类	Article
英文摘要	Key messageQTL for a wheat ideotype root system and its plasticity to nitrogen deficiency were characterized.AbstractRoot system architecture-related traits (RRTs) and their plasticity tonitrogen availability are important for nitrogen acquisition and yield formation in wheat (Triticum aestivum L.). In this study, quantitative trait loci (QTL) analysis was conducted under different nitrogen conditions, using the seedlings of 188 recombinant inbred lines derived from a cross between Kenong 9204 and Jing 411. Fifty-three QTL for seven RRTs and fourteen QTL for the plasticity of these RRTs to nitrogen deficiency were detected. Thirty of these QTL were mapped in nine clusters on chromosomes 2B, 2D, 3A, 3D, 6B, 6D, 7A and 7B. Six of these nine clusters were also colocated with loci for nitrogen use efficiency (NUE)-related traits (NRTs). Among them, three QTL clusters (C2B, C6D and C7B) were highlighted, considering that they individually harbored three stable robust QTL (i.e., QMrl-2B.1, QdRs-6D and QMrl-7B). C2B and C7B stably contributed to the optimal root system, and C6D greatly affected the plasticity of RRTs in response to nitrogen deficiency. However, strong artificial selection was only observed for C7B in 574 derivatives of Kenong 9204. Covariance analysis identified QMrl-7B as the major contributor in C7B that affected the investigated NRTs in mature plants. Phenotypic analysis indicated that thousand kernel weight might represent a concomitant above-ground trait of the hidden RRTs controlled by C7B, which are used for breeding selection. Dissecting these QTL regions with potential breeding value will ultimately facilitate the selection of donor lines with both high yield and NUE in wheat breeding programs.
学科主题	Plant Sciences
URL标识	查看原文
WOS关键词	NEAR-ISOGENIC LINES ; SYSTEM ARCHITECTURE ; GREEN-REVOLUTION ; GENETIC-ANALYSIS ; PLANT HEIGHT ; MAPPING QTLS ; WINTER-WHEAT ; BREAD WHEAT ; DROUGHT-TOLERANCE ; YIELD COMPONENTS
WOS研究方向	Agriculture ; Plant Sciences ; Genetics & Heredity
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000450298100014
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/30096]
专题	环境治理与食品安全领域_农业生物技术研究
作者单位	1.Chinese Acad Sci, Ctr Agr Resources Res, Inst Genet & Dev Biol, Shijiazhuang 050022, Hebei, Peoples R China; 2.Chinese Acad Sci, State Key Lab Plant Cell & Chromosome Engn, Beijing 100101, Peoples R China 3.Ludong Univ, Genet Improvement Ctr Agr & Forest Crops, Coll Agr, Yantai 264025, Peoples R China; 4.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Sichuan, Peoples R China;
推荐引用方式 GB/T 7714	Fan, Xiaoli,Zhang, Wei,Zhang, Na,et al. Identification of QTL regions for seedling root traits and their effect on nitrogen use efficiency in wheat (Triticum aestivum L.)[J]. THEORETICAL AND APPLIED GENETICS,2018,131(12):2677-2698.
APA	Fan, Xiaoli.,Zhang, Wei.,Zhang, Na.,Chen, Mei.,Zheng, Shusong.,...&Li, Junming.(2018).Identification of QTL regions for seedling root traits and their effect on nitrogen use efficiency in wheat (Triticum aestivum L.).THEORETICAL AND APPLIED GENETICS,131(12),2677-2698.
MLA	Fan, Xiaoli,et al."Identification of QTL regions for seedling root traits and their effect on nitrogen use efficiency in wheat (Triticum aestivum L.)".THEORETICAL AND APPLIED GENETICS 131.12(2018):2677-2698.