QTL analysis of flag leaf in barley (Hordeum vulgare L.) for morphological traits and chlorophyll content.
- Author:
Da-wei XUE
1
;
Ming-can CHEN
;
Mei-xue ZHOU
;
Song CHEN
;
Ying MAO
;
Guo-ping ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Chlorophyll; analysis; Chromosome Mapping; Hordeum; genetics; Phenotype; Plant Leaves; genetics; Quantitative Trait Loci
- From: Journal of Zhejiang University. Science. B 2008;9(12):938-943
- CountryChina
- Language:English
- 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.
