eprintid: 10314
rev_number: 18
eprint_status: archive
userid: 1305
dir: disk0/00/01/03/14
datestamp: 2017-11-22 08:58:33
lastmod: 2018-03-04 12:48:33
status_changed: 2017-11-22 08:58:33
type: conference_item
metadata_visibility: show
creators_name: Saxena, R K
creators_name: Singh, V
creators_name: Rathore, A
creators_name: Yu, O
creators_name: Kim, C
creators_name: Kumar, V
creators_name: Patel, K
creators_name: Khan, A W
creators_name: Tyagi, K
creators_name: An, S
creators_name: Seon, D
creators_name: Kuruvinashetti, M S
creators_name: Kim, J
creators_name: BellbullKim, -
creators_name: Zhang, W
creators_name: Sameer Kumar, C V
creators_name: Muniswamy, S
creators_name: Saxena, K B
creators_name: Reif, J C
creators_name: Varshney, R K
icrisatcreators_name: Saxena, R K
icrisatcreators_name: Singh, V
icrisatcreators_name: Rathore, A
icrisatcreators_name: Kumar, V
icrisatcreators_name: Patel, K
icrisatcreators_name: Khan, A W
icrisatcreators_name: An, S
icrisatcreators_name: Seon, D
icrisatcreators_name: Sameer Kumar, C V
icrisatcreators_name: Saxena, K B
icrisatcreators_name: Varshney, R K
affiliation: ICRISAT (Patancheru)
affiliation: Millennium Genomics Inc (Shenzhen)
affiliation: MACROGEN Inc (Seoul)
affiliation: Krishidhan Seeds Pvt Ltd (Jalna)
affiliation: Professor Jayashankar Telangana State Agricultural University (Hyderabad)
affiliation: University of Agricultural Sciences, ARS-Gulbarga (Raichur)
affiliation: The Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) (Germany)
country: India
country: China
country: South Korea
country: Germany
title: Towards defining heterotic pools for accelerating hybrid breeding in pigeonpea
ispublished: pub
subjects: s1.2
subjects: s2.13
divisions: CRPS2
divisions: CRPS3
full_text_status: public
pres_type: paper
keywords: Pigeonpea hybrids, Pigeonpea ICPH 2671, Whole genome re-sequencing (WGRS), Genome-wide SNP variations, Genomic selection, Hybrid breeding program
abstract: Recently released pigeonpea hybrids for cultivation in farmers’
fields have shown their potential to elevate the yield levels. For
instance, the world’s first grain legume hybrid of pigeonpea
ICPH 2671 showed 47% yield advantage over the check varieties.
Generally, the development of such hybrids is based on
selection efficiency of breeding program; breeders make thousands
of random crosses between cytoplasmic male sterile
(CMS) lines and tester lines. In order to enhance the selection
efficiency, genomic diversity along with the phenotyping data
have been used for predicting the best possible parental combinations.
This approach has been successfully used in defining
heterotic pools in many crop species such as maize, rice, sunflower,
and rapeseeds.. With an aim to define heterotic pools in
pigeonpea, a set of 104 parental lines (09 CMS, 13 maintainers
and 82 restorers) have been re-sequenced following whole genome
re-sequencing (WGRS) approach. WGRS yielded a total
of 511 GB data with the coverage ranging from 5X to 10X. A
total of 3.4 million SNPs have been identified across parental
lines. Structural variations such as copy number and presence/
absence variations have been also identified. In parallel, these
parental lines have been used to develop test crosses in factorial
mating design. F1 hybrids along with parental lines were
phenotyped for yield and yield related traits at two locations
in India, namely ICRISAT, Telangana State and ARS-Gulbarga,
Karnataka. The availability of genome-wide SNP variations
combined with the phenotypic data will be used for deploying
genomic selection to define hetereotic pools in pigeonpea for
accelerating hybrid breeding program.
date: 2017-02
pagerange: 228
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:   Saxena, R K and Singh, V and Rathore, A and Yu, O and Kim, C and Kumar, V and Patel, K and Khan, A W and Tyagi, K and An, S and Seon, D and Kuruvinashetti, M S and Kim, J and BellbullKim, - and Zhang, W and Sameer Kumar, C V and Muniswamy, S and Saxena, K B and Reif, J C and Varshney, R K  (2017) Towards defining heterotic pools for accelerating hybrid breeding in pigeonpea.  In: InterDrought-V, February 21-25, 2017, Hyderabad, India.     
document_url: http://oar.icrisat.org/10314/1/Abstract_Book_420.pdf