Mapping of loci from Solanum lycopersicoides conferring resistance or susceptibility to Botrytis cinerea in tomato

被引：24

作者：

Davis, Joel ^{[2
]}

Yu, Daozhan ^{[3
]}

Evans, Wendy ^{[2
]}

Gokirmak, Tufan ^{[4
]}

Chetelat, Roger T. ^{[1
]}

Stotz, Henrik U. ^{[5
]}

机构：

[1] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA

[2] Oregon State Univ, Dept Hort, Corvallis, OR 97331 USA

[3] Univ Maryland, Sch Med, Baltimore, MD 21201 USA

[4] Univ Florida, Plant Mol & Cellular Biol Program, Gainesville, FL 32611 USA

[5] RIKEN Plant Sci Ctr, Kanagawa 2300045, Japan

来源：

THEORETICAL AND APPLIED GENETICS | 2009年 / 119卷 / 02期

关键词：

ARABIDOPSIS-THALIANA; INTROGRESSION LINES; CULTIVATED TOMATO; GENES; IDENTIFICATION; LOCALIZATION;

D O I：

10.1007/s00122-009-1039-9

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Cultivated tomato (Solanum lycopersicum, syn. Lycopersicon esculentum) is susceptible to the necrotrophic ascomycete and causal agent of gray mold, Botrytis cinerea. Resistance to this fungal pathogen is elevated in wild relatives of tomato, including Solanum lycopersicoides. An introgression line population (IL) containing chromosomal segments of S. lycopersicoides within the background of tomato cv. VF36 was used to screen the genome for foliar resistance and susceptibility to B. cinerea. Based on this screen, putative quantitative trait loci (QTL) were identified, five for resistance and two for susceptibility. Four resistance QTL decreased infection frequency while the fifth reduced lesion diameter. One susceptibility QTL increased infection frequency whereas the other increased lesion diameter. Overlapping chromosomal segments provided strong evidence for partial resistance on chromosomes 1 and 9 and for elevated susceptibility on chromosome 11. Segregation analysis confirmed the major resistance QTL on the long arm of chromosome 1 and susceptibility on chromosome 11. Linkage of partial resistance to chromosome 9 could not be confirmed. The usefulness of these data for resistance breeding and for map-based cloning of foliar resistance to B. cinerea is discussed.

引用

页码：305 / 314

页数：10

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