Mapping of quantitative trait loci conferring resistance to bacterial wilt in tobacco (Nicotiana tabacum L.)

被引：18

作者：

Lan, Tao ^{[1
,2
]}

Zheng, Shanfeng ^{[1
,2
]}

Yang, Liu ^{[1
,2
]}

Wu, Shengxin ^{[3
]}

Wang, Bin ^{[1
,2
]}

Zhang, Shujun ^{[1
,2
]}

Tong, Zhijun ^{[4
]}

Chen, Yazhi ^{[3
]}

Chen, Shunhui ^{[3
]}

Duan, Yuanlin ^{[1
,2
]}

Wu, Weiren ^{[1
,2
]}

机构：

[1] Fujian Agr & Forestry Univ, Minist Educ Genet Breeding & Multiple Utilizat Cr, Key Lab, Fuzhou 350002, Fujian, Peoples R China

[2] Fujian Agr & Forestry Univ, Fujian Prov Key Lab Crop Breeding Design, Fuzhou 350002, Fujian, Peoples R China

[3] Inst Fujian Tobacco Agr Sci, Fuzhou 350003, Fujian, Peoples R China

[4] Yunnan Acad Tobacco Agr Sci, Yuxi 653100, Yunnan, Peoples R China

来源：

PLANT BREEDING | 2014年 / 133卷 / 05期

关键词：

tobacco; bacterial wilt; resistance; quantitative trait locus; MAP; MARKERS; COMPLEX; TOMATO; DNA;

D O I：

10.1111/pbr.12202

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Tobacco bacterial wilt (TBW) is one of the most serious tobacco diseases in the world. Studies have shown that tobacco resistance to TBW is quantitatively inherited. This study aimed to map quantitative trait loci (QTL) conferring TBW resistance. An F-2:3 population containing 237 lines was developed from a cross between two flue-cured tobacco cultivars, Yanyan 97' (YY97; moderately resistant to TBW) and Honghua Dajinyuan' (HD; highly susceptible to TBW), and a linkage map consisting of 201 simple sequence repeats (SSR) markers and spanning a total length of 2326.7cM was constructed based on the population. Field experiments were conducted 2011 and 2012, and disease symptoms were investigated three times in each year. The phenotypic data were analysed either separately or jointly for QTL mapping using the software QTLNetwork 2.1. Eight QTL with significant main effects were mapped on chromosomes 2, 6, 12, 17 and 24. A major QTL (qBWR17a) was detected on chromosome 17, which explained up to 30% of the phenotypic variation. The results can facilitate marker-assisted selection (MAS) in TBW resistance breeding programme.

引用

页码：672 / 677

页数：6

共 17 条

[11] Identification of DNA markers of tobacco linked to bacterial wilt resistance [J].