Genetic gain in yield and protein over two cycles of a wheat recurrent selection program

Niu, Na, Arief, Vivi N., DeLacy, Ian H., Lush, Douglas, Sheppard, John, Zhang, Gaisheng and Dieters, Mark J. (2010) Genetic gain in yield and protein over two cycles of a wheat recurrent selection program. Breeding Science, 60 3: 181-186. doi:10.1270/jsbbs.60.181

Author Niu, Na
Arief, Vivi N.
DeLacy, Ian H.
Lush, Douglas
Sheppard, John
Zhang, Gaisheng
Dieters, Mark J.
Title Genetic gain in yield and protein over two cycles of a wheat recurrent selection program
Journal name Breeding Science   Check publisher's open access policy
ISSN 1344-7610
Publication date 2010-09
Sub-type Article (original research)
DOI 10.1270/jsbbs.60.181
Open Access Status DOI
Volume 60
Issue 3
Start page 181
End page 186
Total pages 6
Place of publication Kyoto, Japan
Publisher Nihon Ikushu Gakkai (Japanese Society of Breeding)
Collection year 2011
Language eng
Subject 0703 Crop and Pasture Production
Abstract Increasing grain yield and protein are important wheat breeding goals. However, the simultaneous improvement of both traits is complicated by a strong negative correlation and genotype by environment interaction (G×E). A recurrent selection program (RSP) reported here was initiated to produce germplasm, which combined both high yield-potential and increased protein content for the northern wheat-growing region of Australia. Diallel crossing amongst 10 cultivars (6 high yield and 4 high quality cultivars), followed by random mating amongst the F1s were used to produce the founding segregating population. Two years of multi-environment trials were conducted in the GRDC Northern Grain Region (NR) for each of the foundation (RSA0) and first (RSA1) cycles of recurrent selection. Data from the two cycles were analysed to evaluate the genetic gain achieved over the two cycles of selection, based on five potential selection strategies. Selection based on yield or protein or yield-adjusted protein only increased selected trait but reduced the other traits. However, application of selection based on yield and protein or yield and yield-adjusted protein simultaneously increased both yield (4.7%, 6.0% for RSA0 and 4.0%, 4.2% for RSA1 respectively) and protein (2.1%, 1.3% for RSA0 and 1.7%, 1.6% for RSA1 respectively).
Keyword Wheat
Grain protein
Grain yield
Principal component analysis
Recurrent selection
Genetic gain
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2011 Collection
School of Agriculture and Food Sciences
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 3 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 12 Oct 2010, 11:05:08 EST by Ms May Balasaize on behalf of Faculty Of Nat Resources, Agric & Veterinary Sc