relation: http://oar.icrisat.org/11613/
title: Genotyping-by-sequencing and multilocation evaluation of two interspecific backcross populations identify QTLs for yield-related traits in pigeonpea
creator: Saxena, R K
creator: Kale, S
creator: Mir, R R
creator: Mallikarjuna, N
creator: Yadav, P
creator: Das, R R
creator: Molla, J
creator: Sonnappa, M
creator: Ghanta, A
creator: Narasimhan, Y
creator: Rathore, A
creator: Kumar, C V S
creator: Varshney, R K
subject: Pigeonpea
subject: Genetics and Genomics
description: This study has identified single-nucleotide polymorphism (SNP) markers associated with nine yield-related traits in pigeonpea  by using two backcross populations (BP) developed through interspecific crosses and evaluating them at two locations  and 3 years. In both the populations, markers have shown strong segregation distortion; therefore, a quantitative trait locus  (QTL) mapping mixed model was used. A total of 86 QTLs explaining 12–21% phenotypic variation were detected in BP-1.  On the other hand, 107 QTLs explaining 11–29% phenotypic variation were detected in BP-2. Although most QTLs were  environment and trait specific, few stable and consistent QTLs were also detected. Interestingly, 11 QTLs in BP-2 were  associated with more than one trait. Among these QTLs, eight QTLs associated with days to 50% flowering and days to  75% maturity were located on CcLG07. One SNP “S7_14185076” marker in BP-2 population has been found associated  with four traits, namely days to 50% flowering, days to 75% maturity, primary branches per plant and secondary branches  per plant with positive additive effect. Hence, the present study has not only identified QTLs for yield-related traits, but also  discovered novel alleles from wild species, which can be used for improvement of traits through genomics-assisted breeding.
publisher: SPRINGER
date: 2019-12
type: Article
type: PeerReviewed
format: application/pdf
language: en
identifier: http://oar.icrisat.org/11613/1/s00122-019-03504-z-1.pdf
identifier:   Saxena, R K and Kale, S and Mir, R R and Mallikarjuna, N and Yadav, P and Das, R R and Molla, J and Sonnappa, M and Ghanta, A and Narasimhan, Y and Rathore, A and Kumar, C V S and Varshney, R K  (2019) Genotyping-by-sequencing and multilocation evaluation of two interspecific backcross populations identify QTLs for yield-related traits in pigeonpea.  Theoretical and Applied Genetics (TSI), 133 (3).  pp. 737-749.  ISSN 0040-5752     
relation: https://doi.org/10.1007/s00122-019-03504-z
relation: doi:10.1007/s00122-019-03504-z