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Selection for Lodging Resistance in Early Generations of Field Pea by Molecular Markers
Author(s) -
Zhang Chunzhen,
Tar'an Bunyamin,
Warkentin' Tom,
Tullu Abebe,
Bett Kirstin E.,
Vandenberg Bert,
Somers Daryl J.
Publication year - 2006
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci2005.0123
Subject(s) - biology , marker assisted selection , sativum , selection (genetic algorithm) , field pea , pisum , population , resistance (ecology) , genetic marker , genomic selection , breeding program , microbiology and biotechnology , plant breeding , agronomy , genetics , botany , genotype , gene , cultivar , single nucleotide polymorphism , demography , artificial intelligence , sociology , computer science
Lodging resistance is a key objective in pea breeding programs. Implementation of marker‐assisted selection (MAS) in early generations could significantly enhance the efficiency of the breeding process compared with conventional selection in the F 3 or later generations. The objective of this research was to evaluate the effectiveness of MAS for lodging resistance using a combination of a coupling‐phase linked marker A001 and a repulsion‐phase linked marker A004 in F 2 generation field pea ( Pisum sativum L.). Eight F 2 populations consisting of 680 plants were scored for the markers. A total of 402 F 3 families derived from MAS and 187 F 3 families from unselected populations were evaluated for lodging reaction under field conditions. The lowest lodging scores for each population were obtained from plants with the combination of A001 marker presence and A004 marker absence. A higher proportion of lodging resistant F 3 families was obtained from this marker combination as compared with phenotypic selection in the F 3 generation. MAS was less expensive than phenotypic selection in the field. Thus, A001 and A004 are useful for MAS for lodging resistance in early generation pea breeding populations.