eprintid: 11613
rev_number: 10
eprint_status: archive
userid: 3170
dir: disk0/00/01/16/13
datestamp: 2020-09-08 05:59:27
lastmod: 2020-09-08 05:59:27
status_changed: 2020-09-08 05:59:27
type: article
metadata_visibility: show
creators_name: Saxena, R K
creators_name: Kale, S
creators_name: Mir, R R
creators_name: Mallikarjuna, N
creators_name: Yadav, P
creators_name: Das, R R
creators_name: Molla, J
creators_name: Sonnappa, M
creators_name: Ghanta, A
creators_name: Narasimhan, Y
creators_name: Rathore, A
creators_name: Kumar, C V S
creators_name: Varshney, R K
creators_gender: Female
creators_gender: Female
creators_gender: Female
creators_gender: Female
icrisatcreators_name: Saxena, R K
icrisatcreators_name: Kale, S
icrisatcreators_name: Mallikarjuna, N
icrisatcreators_name: Yadav, P
icrisatcreators_name: Das, R R
icrisatcreators_name: Molla, J
icrisatcreators_name: Rathore, A
icrisatcreators_name: Varshney, R K
affiliation: ICRISAT (Patancheru)
affiliation: The Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK), Corrensstr.,Seeland
affiliation: Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir (SKUAST-K), Wadura Campus, Sopore, Kashmir
affiliation: Agricultural Research Station (UAS-Raichur), Gulbarga, Karnataka
affiliation: Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad, Telangana
country: India
country: Germany
title: Genotyping-by-sequencing and multilocation evaluation of two interspecific backcross populations identify QTLs for yield-related traits in pigeonpea
ispublished: pub
subjects: s1.2
subjects: s2.13
divisions: CRPS3
crps: CG1
full_text_status: public
keywords: Pigeonpea, Genetics, Genomics
note: Authors are thankful for the Department of Agriculture
Cooperation & Farmers’ Welfare, Ministry of Agriculture &
Farmers Welfare, Government of India and United States Agency for
International Development (USAID). This work is also partially funded
as part of the initiative “Adapting Agriculture to Climate Change: Collecting,
Protecting and Preparing Crop Wild Relatives,” which is supported
by the Government of Norway. The project is managed by the
Global Crop Diversity Trust. This work has been undertaken as part of
the CGIAR Research Program on Grain Legumes and Dryland Cereals
(GLDC). ICRISAT is a member of CGIAR Consortium.
abstract: 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.
date: 2019-12
date_type: published
publication: Theoretical and Applied Genetics (TSI)
volume: 133
number: 3
publisher: SPRINGER
pagerange: 737-749
id_number: doi:10.1007/s00122-019-03504-z
refereed: TRUE
issn: 0040-5752
official_url: https://doi.org/10.1007/s00122-019-03504-z
citation:   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     
document_url: http://oar.icrisat.org/11613/1/s00122-019-03504-z-1.pdf