Fine genetic mapping localizes cucumber scab resistance gene Ccu into an R gene cluster | |
Kang, Houxiang1,3; Weng, Yiqun2; Yang, Yuhong1,3; Zhang, Zhonghua1,3; Zhang, Shengping1,3; Mao, Zhenchuan1,3; Cheng, Guohua1,3; Gu, Xingfang1,3; Huang, Sanwen1,3; Xie, Bingyan1,3 | |
刊名 | THEORETICAL AND APPLIED GENETICS |
2011 | |
卷号 | 122期号:4页码:795-803 |
ISSN号 | 0040-5752 |
DOI | 10.1007/s00122-010-1487-2 |
通讯作者 | Kang, Houxiang |
英文摘要 | Scab, caused by Cladosporium cucumerinum, is an important disease of cucumber, Cucumis sativus. In this study, we conducted fine genetic mapping of the single dominant scab resistance gene, Ccu, with 148 F(9) recombinant inbred lines (RILs) and 1,944 F(2) plants derived from the resistant cucumber inbred line 9110Gt and the susceptible line 9930, whose draft genome sequence is now available. A framework linkage map was first constructed with simple sequence repeat markers placing Ccu into the terminal 670 kb region of cucumber Chromosome 2. The 9110Gt genome was sequenced at 5x genome coverage with the Solexa next-generation sequencing technology. Sequence analysis of the assembled 9110Gt contigs and the Ccu region of the 9930 genome identified three insertion/deletion (Indel) markers, Indel01, Indel02, and Indel03 that were closely linked with the Ccu locus. On the high-resolution map developed with the F(2) population, the two closest flanking markers, Indel01 and Indel02, were 0.14 and 0.15 cM away from the target gene Ccu, respectively, and the physical distance between the two markers was approximately 140 kb. Detailed annotation of the 180 kb region harboring the Ccu locus identified a cluster of six resistance gene analogs (RGAs) that belong to the nucleotide binding site (NBS) type R genes. Four RGAs were in the region delimited by markers Indel01 and Indel02, and thus were possible candidates of Ccu. Comparative DNA analysis of this cucumber Ccu gene region with a melon (C. melo) bacterial artificial chromosome (BAC) clone revealed a high degree of micro-synteny and conservation of the RGA tandem repeats in this region. |
学科主题 | Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture ; AGRONOMY ; GENETICS & HEREDITY ; HORTICULTURE ; PLANT SCIENCES |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000287244600012 |
内容类型 | 期刊论文 |
源URL | [http://111.203.20.206/handle/2HMLN22E/101157] |
专题 | 蔬菜花卉研究所_植物保护研究室 |
作者单位 | 1.Minist Agr, Key Lab Hort Crops Genet Improvement, Beijing 100081, Peoples R China 2.Univ Wisconsin, Dept Hort, USDA ARS Vegetable, Crops Res Unit, Madison, WI 53706 USA 3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Kang, Houxiang,Weng, Yiqun,Yang, Yuhong,et al. Fine genetic mapping localizes cucumber scab resistance gene Ccu into an R gene cluster[J]. THEORETICAL AND APPLIED GENETICS,2011,122(4):795-803. |
APA | Kang, Houxiang.,Weng, Yiqun.,Yang, Yuhong.,Zhang, Zhonghua.,Zhang, Shengping.,...&Xie, Bingyan.(2011).Fine genetic mapping localizes cucumber scab resistance gene Ccu into an R gene cluster.THEORETICAL AND APPLIED GENETICS,122(4),795-803. |
MLA | Kang, Houxiang,et al."Fine genetic mapping localizes cucumber scab resistance gene Ccu into an R gene cluster".THEORETICAL AND APPLIED GENETICS 122.4(2011):795-803. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论