Mapping QTL for important seed traits in an interspecific F2 population of pigeonpea.

Publication Overview
TitleMapping QTL for important seed traits in an interspecific F2 population of pigeonpea.
AuthorsBohra A, Jha R, Lamichaney A, Singh D, Jha UC, Naik SJS, Datta D, Maurya AK, Tiwari A, Yadav V, Singh F, Singh IP, Singh NP
TypeJournal Article
Journal Name3 Biotech
Volume10
Issue10
Year2020
Page(s)434
CitationBohra A, Jha R, Lamichaney A, Singh D, Jha UC, Naik SJS, Datta D, Maurya AK, Tiwari A, Yadav V, Singh F, Singh IP, Singh NP. Mapping QTL for important seed traits in an interspecific F2 population of pigeonpea.. 3 Biotech. 2020 Oct; 10(10):434.

Abstract

Seed traits present important breeding targets for enhancing grain yield and quality in various grain legume crops including pigeonpea. The present study reports significant genetic variation for six seed traits including seed length (SL), seed width (SW), seed thickness (ST), seed weight (SWT), electrical conductivity (EC) and water uptake (WU) among Cajanus cajan (L.) Millspaugh acc. ICPL 20340 and Cajanus scarabaeoides (L.) Thouars acc. ICP 15739 and an F2 population derived from this interspecific cross. Maximum phenotypic values recorded for the F2 population were higher than observed in the parent ICPL 20340 [F2 max vs ICPL 20340: SW (7.05 vs 5.38), ST (4.63 vs 4.51), EC (65.17 vs 9.72), WU (213.17 vs 109.5)], which suggested contribution of positive alleles from the wild parent, ICP 15739. Concurrently, to identify the QTL controlling these seed traits, we assayed two parents and 94 F2 individuals with 113 polymorphic simple sequence repeat (SSR) markers. In the F2 population, 98 of the 113 SSRs showed Mendelian segregation ratio 1:2:1, whereas significant deviations were observed for 15 SSRs with their χ2 values ranging between 6.26 and 20.62. A partial genetic linkage map comprising 83 SSR loci was constructed. QTL analysis identified 15 marker-trait associations (MTAs) for seed traits on four linkage groups i.e. LG01, LG02, LG04 and LG05. Phenotypic variations (PVs) explained by these QTL ranged from 4.4 (WU) to 19.91% (EC). These genomic regions contributing significantly towards observed variability of seed traits would serve as potential candidates for future research that aims to improve seed traits in pigeonpea.

Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
ICPL_20340ICPL_20340cultivar
ICP_15739ICP_15739wild_unimproved
ICPL_20340/ICP_15739-F2ICPL_20340/ICP_15739-F2population
Features
This publication contains information about 128 features:
Feature NameUniquenameType
AHSSR018AHSSR018genetic_marker
AHSSR128AHSSR128genetic_marker
AHSSR201AHSSR201genetic_marker
AHSSR205AHSSR205genetic_marker
AHSSR208AHSSR208genetic_marker
AHSSR211AHSSR211genetic_marker
AHSSR214AHSSR214genetic_marker
AHSSR225AHSSR225genetic_marker
AHSSR226AHSSR226genetic_marker
AHSSR227AHSSR227genetic_marker
AHSSR228AHSSR228genetic_marker
AHSSR230AHSSR230genetic_marker
AHSSR231AHSSR231genetic_marker
AHSSR234AHSSR234genetic_marker
AHSSR235AHSSR235genetic_marker
AHSSR251AHSSR251genetic_marker
AHSSR256AHSSR256genetic_marker
AHSSR258AHSSR258genetic_marker
AHSSR261AHSSR261genetic_marker
AHSSR264AHSSR264genetic_marker
AHSSR265AHSSR265genetic_marker
AHSSR273AHSSR273genetic_marker
AHSSR276AHSSR276genetic_marker
AHSSR282AHSSR282genetic_marker
AHSSR283AHSSR283genetic_marker

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Bean-Seed_traits-Bohra-2020
Featuremaps
This publication contains information about 1 maps:
Map Name
Pigeon_pea-ICPL_20340/ICP_15739-F2
Properties
Additional details for this publication include:
Property NameValue
Publication ModelPrint-Electronic
ISSN2190-572X
pISSN2190-572X
Publication Date2020 Oct
DOI10.1007/s13205-020-02423-x
Elocation10.1007/s13205-020-02423-x
Copyright© King Abdulaziz City for Science and Technology 2020.
LanguageEnglish
Language Abbreng
Publication TypeJournal Article
Journal CountryGermany
Cross References
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DatabaseAccession
PMID: PubMedPMID:32999812