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Inheritance of resistance to anthracnose caused by Colletotrichum capsici in Capsicum
Author(s) -
Pakdeevaraporn P.,
Wasee S.,
Taylor P. W. J.,
Mongkolporn O.
Publication year - 2005
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.2004.01065.x
Subject(s) - colletotrichum capsici , biology , inheritance (genetic algorithm) , resistance (ecology) , botany , colletotrichum , capsicum annuum , horticulture , pepper , agronomy , fungicide , genetics , gene
Inheritance of resistance to anthracnose caused by Colletotrichum capsici (Syd.) Butler & Bisby was studied in interspecific Capsicum populations derived from a cross between a Thai elite cultivar Capsicum annuum L.‘Bangchang’ and a resistant line C. chinense Jacq.‘PBC932′. The resistance was assessed by measuring lesion area per fruit area (LFA) on detached chili fruits, using a laboratory‐based injection inoculation. Nil symptoms resembling the resistant parent ‘PBC932’ were also identified in the progeny F 2 and BC1 populations. Segregation of resistance (nil LFA) and susceptibility in the F 2 fitted a 1: 3 Mendelian ratio, indicating that resistance was responsible by a single recessive gene. The segregation of the trait in the testcrosses in both BC1s also confirmed the 1: 3 gene segregating model as found in the F 2 .