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Journal of Zhejiang University SCIENCE B
ISSN 1673-1581(Print), 1862-1783(Online), Monthly
2008 Vol.9 No.12 P.938-943
QTL analysis of flag leaf in barley (Hordeum vulgare L.) for morphological traits and chlorophyll content
Abstract: To understand genetic patterns of the morphological and physiological traits in flag leaf of barley, a double haploid (DH) population derived from the parents Yerong and Franklin was used to determine quantitative trait loci (QTL) controlling length, width, length/width, and chlorophyll content of flag leaves. A total of 9 QTLs showing significantly additive effect were detected in 8 intervals on 5 chromosomes. The variation of individual QTL ranged from 1.9% to 20.2%. For chlorophyll content expressed as SPAD value, 4 QTLs were identified on chromosomes 2H, 3H and 6H; for leaf length and width, 2 QTLs located on chromosomes 5H and 7H, and 2 QTLs located on chromosome 5H were detected; and for length/width, 1 QTL was detected on chromosome 7H. The identification of these QTLs associated with the properties of flag leaf is useful for barley improvement in breeding programs.
Key words: Barley (Hordeum vulgare L.), Double haploid (DH), Flag leaf, Quantitative trait loci (QTL)
References:
Open peer comments: Debate/Discuss/Question/Opinion
<1>
Dominique<20844243@qq.com>
2010-08-03 21:00:11
In general, the study is sound and brings useful information to the scientific community.
The overall quality of the paper is satisfactory and authors provide interesting data for a plant breeder willing to improve such traits in barley, not as a general information but rather as a comparison point to be linked with other data.
DOI:
10.1631/jzus.B0820105
CLC number:
Q78
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Received:
2008-04-01
Revision Accepted:
2008-09-23
Crosschecked:
2008-11-17