eprintid: 10712
rev_number: 11
eprint_status: archive
userid: 1305
dir: disk0/00/01/07/12
datestamp: 2018-06-12 10:59:07
lastmod: 2018-06-12 10:59:07
status_changed: 2018-06-12 10:59:07
type: conference_item
metadata_visibility: show
creators_name: Kaoneka, S R
creators_name: Saxena, R K
creators_name: Singh, V K
creators_name: Sameer Kumar, C V
creators_name: Shimelis, H A
creators_name: Varshney, R K
icrisatcreators_name: Kaoneka, S R
icrisatcreators_name: Saxena, R K
icrisatcreators_name: Singh, V K
icrisatcreators_name: Sameer Kumar, C V
icrisatcreators_name: Varshney, R K
affiliation: ICRISAT (Patancheru)
affiliation: University of KwaZulu-Natal (Pietermaritzburg)
affiliation: School of Plant Biology and Institute of Agriculture, The University of Western Australia (Crawley)
country: India
country: South Africa
country: Australia
title: Identification of genomic regions associated with the yield and related traits in pigeonpea (Cajanus cajan L. Millsp.)
ispublished: pub
subjects: s1.2
subjects: s2.13
divisions: CRPS3
full_text_status: public
pres_type: paper
keywords: Pigeonpea, QTL analysis, genomics
abstract: Pigeonpea [Cajanus cajan (L) Millsp.] is an important multi-use
shrub legume of the tropics, sub-tropics and warmer regions of
the world, growing between 30°N and 35°S latitude. The goal
of this study was to identify genomic regions associated with
yield and related traits in three newly developed F2 mapping
populations of pigeonpea; AL 201 × ICPL 20325, ICP 5529 ×
ICP 7035 and ICP 8863 × ICPL 87119. Genotyping by Sequencing
(GBS) platform was used for genetic analysis and linkage
analysis was performed using JoinMap version 4. Quantitative
Trait Linkage (QTL) analysis of eight yield and yield–related
traits were performed using single marker analysis (SMA)
employing composite interval (CIM) using stepwise regression
linear model. A total of 42 QTLs were detected, with 5
in AL 201 × ICPL 20325, 7 in ICP 5529 × ICP 7035 and 30 in
ICP 8863 × ICPL 87119. Individual QTLs ranged from 1-4 per
trait and the phenotypic value explained (PVE%) ranged between
10.35 -16.27% in AL 201× ICPL 20325,10.44 -17.9 in ICP
5529 × ICP7035 and 10.71-89.12% in ICP 8863 × ICPL 87119.
The detected QTLs were co-localized within the same genomic
regions, indicating the presence of pleiotropic effect or close
genetic linkage. For further fine mapping and use in marker assisted
transfer, validation for the accuracy and consistency of
the identified QTLs in several, independent and diverse mapping
populations transfer is crucial.
date: 2017-02
date_type: published
pagerange: P-062
event_title: InterDrought-V
event_location: Hyderabad, India
event_dates: February 21-25, 2017
event_type: conference
refereed: TRUE
related_url_url: http://idv.ceg.icrisat.org/wp-content/uploads/2017/02/Abstract_Book_Final.pdf
related_url_type: org
citation:   Kaoneka, S R and Saxena, R K and Singh, V K and Sameer Kumar, C V and Shimelis, H A and Varshney, R K  (2017) Identification of genomic regions associated with the yield and related traits in pigeonpea (Cajanus cajan L. Millsp.).  In: InterDrought-V, February 21-25, 2017, Hyderabad, India.     
document_url: http://oar.icrisat.org/10712/1/Abs%20247.pdf