INHERITANCE OF A RESISTANCE SPECIFIC TO TOMATO SPOTTED WILT TOSPOVIRUS IN CAPSICUM-CHINENSE PI-159236

被引：68

作者：

BOITEUX, LS

DEAVILA, AC

机构：

[1] Centro Nacional de Pesquisa de Hortaliças (CNPH)/EMBRAPA, Brasilia, 70359-970, DF

来源：

EUPHYTICA | 1994年 / 75卷 / 1-2期

关键词：

CAPSICUM CHINENSE; CAPSICUM ANNUM; INHERITANCE; TOMATO SPOTTED WILT VIRUS; TOSPOVIRUSES; HYPERSENSITIVE-LIKE RESISTANCE; RESISTANCE; TSWV; GENETICS; PEPPER;

D O I：

10.1007/BF00024541

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Inheritance studies were conducted to determine the genetic basis of resistance in pepper against one Tospovirus isolate classified as tomato spotted wilt virus (TSWV). F-1, backcrosses and F-2 populations were developed using the resistant parent Capsicum chinense 'PI 159236' (CNPH 679) and the susceptible parent C. annuum 'Magda' (CNPH 192), Segregation ratios strongly indicated that the resistant response (a localization, hypersensitive-like reaction) to TSWV fits a single-dominant gene model. Under our experimental conditions, the penetrance of this gene was very high. This gene (tentatively named Tsw) is highly effective only against TSWV isolates. The resistance governed by the Tsw gene was not effective against isolates belonging to tomato chlorotic spot virus (TCSV) and groundnut ring spot virus (GRSV), two other previously described Tospovirus species.

引用

页码：139 / 142

页数：4