Linkage mapping of QTL for seed yield, yield components, and developmental traits in pea

Publication Overview
TitleLinkage mapping of QTL for seed yield, yield components, and developmental traits in pea
AuthorsTimmerman-Vaughan G, Mills A, Whitfield C, Frew T, Butler R, Murray S, Lakeman M, McCallum J, Russell A, Wilson D
TypeJournal Article
Journal NameCrop science
Volume45
Issue4
Year2005
Page(s)1336-1344
CitationTimmerman-Vaughan G, Mills A, Whitfield C, Frew T, Butler R, Murray S, Lakeman M, McCallum J, Russell A, Wilson D. Linkage mapping of QTL for seed yield, yield components, and developmental traits in pea. Crop science. 2005; 45(4):1336-1344.

Abstract

Seed yield in pea (Pisum sativum L.) is a physiologically complex trait that is strongly influenced by both genotype and environment. Seed yield can be described in terms of its components, which include plant number per unit area, seed weight, and seed number. These yield components show interdependence and plasticity in response to environment; therefore, selection based on a single component is unlikely to succeed in increasing yield in breeding programs. To improve our understanding of the genetic basis of seed yield determination in pea and to identify genetic loci involved, quantitative trait loci (QTL) for yield per se, yield components (seed weight, seed number, and harvest index [HI]) and developmental traits (node of first flower [NFF], number of flowering nodes [NFN], total node number [TNN]) were mapped. The QTL mapping was conducted using F2-derived families of a cross between Primo, a marrowfat cultivar, and OSU442-15, a blue pea breeding line. Linkage maps containing 108 loci on 11 linkage groups (LGs) were constructed for 227 families derived from this cross. Traits were measured in three replicated field trials conducted in New Zealand during the summers of 1997-1998, 1998-1999, and 2002-2003. The trials were managed to ensure maximum expression of yield potential. The QTL affecting yield-related traits were associated with 19 genomic regions on LGs I, II, III, IV, VI, and VII. The QTL for different yield-related traits were colocalized, suggesting some basis for understanding the reproductive plasticity that is observed in pea at the genetic level.
Features
This publication contains information about 72 features:
Feature NameUniquenameType
agpL2agpL2genetic_marker
c267c267genetic_marker
C44C44genetic_marker
E3EE3Egenetic_marker
G08G08genetic_marker
GS185GS185genetic_marker
M2P1M2P1genetic_marker
M2P2M2P2genetic_marker
M3P8M3P8genetic_marker
M5P8M5P8genetic_marker
M75M75genetic_marker
MapKinMapKingenetic_marker
P346P346genetic_marker
P445P445genetic_marker
PI49PI49genetic_marker
PYRB2PYRB2genetic_marker
sAFP16-3sAFP16-3genetic_marker
sAFP9-6sAFP9-6genetic_marker
Sc3Sc3genetic_marker
SPS2SPS2genetic_marker
Seed number per square meterqSDNBM.PrimoxOSU442-15.LGI.NUM99QTL
Seed number per plotqSDNBPLOT.PrimoxOSU442-15.LGI.NUM98QTL
1000-seed weightqTSDWT.PrimoxOSU442-15.LGI.TSW03QTL
Node of first flowerqNDFF.PrimoxOSU442-15.LGI.NFF99QTL
Number of flowering nodesqNBFND.PrimoxOSU442-15.LGI.NFN03QTL

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Pea-Seed_yield_developmental_traits-Timmerman-2005
Featuremaps
This publication contains information about 1 maps:
Map Name
pea-PrimoxOSU442-15-F2
Properties
Additional details for this publication include:
Property NameValue
Publication TypeJournal Article
Publication Date2005
Published Location|||
Language Abbreng
KeywordsPisum sativum, peas, field crops, quantitative trait loci, crop yield, yield components, plant development, chromosome mapping, linkage (genetics), seed productivity, harvest index, stem nodes, loci, linkage groups, seed weight, yield potential