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Identification of dominant and recessive genes for resistance to Fusarium wilt in pigeonpea and their implication in breeding hybrids

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Relation http://oar.icrisat.org/5916/
http://dx.doi.org/10.1007/s10681-012-0700-6
 
Title Identification of dominant and recessive genes for resistance to Fusarium wilt in pigeonpea and their implication in breeding hybrids
 
Creator Saxena, K B
Kumar, R V
Saxena, R K
Sharma, M
Srivastava, R K
Sultana, R
Varshney, R K
Vales, M I
Pande, S
 
Subject Pigeonpea
Genetics and Genomics
 
Description Fusarium wilt is an important disease of pigeonpea [Cajanus cajan (L.) Millsp.] and it can cause severe yield losses. Chemical control of this disease is difficult and expensive; therefore, cultivation of resistant varieties/hybrids is the most efficient strategy for enhancing the production. In the present study, by using a wilt susceptible cytoplasmic-nuclear male-sterile line and four wilt resistant fertility restorers, one dominant and one recessive gene with dominant suppressive epistatic effects were found responsible for controlling resistance to Fusarium wilt. Considering the annual losses and wide spread nature of wilt diseases in pigeonpea, it is imperative that all the inbred and hybrid cultivars have high level of resistance to this disease. The presence of dominant gene for resistance will increase the efficiency of breeding wilt resistant cultivars because it will yield greater proportion of resistant genotypes in segregating generations. In hybrid breeding also, the presence of dominant gene for wilt resistance will be an advantage. The transfer of this gene in female hybrid parents will ease the breeding of wilt resistant hybrids because this will allow the use of both wilt resistant as well as susceptible restorers in generating wilt resistant hybrid combinations
 
Publisher Springer
 
Date 2012
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/5916/1/Euphytica_188_2_221-227_2012.pdf
Saxena, K B and Kumar, R V and Saxena, R K and Sharma, M and Srivastava, R K and Sultana, R and Varshney, R K and Vales, M I and Pande, S (2012) Identification of dominant and recessive genes for resistance to Fusarium wilt in pigeonpea and their implication in breeding hybrids. Euphytica, 188 (2). pp. 221-227. ISSN 1573-5060