title: 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.
authors.affiliation: Agronomy Department, Zhejiang University, Hangzhou 310029, China.
authors.forename: Da-wei
authors.initials: DW
authors.lastname: Xue
authors.forename: Ming-can
authors.initials: MC
authors.lastname: Chen
authors.forename: Mei-xue
authors.initials: MX
authors.lastname: Zhou
authors.forename: Song
authors.initials: S
authors.lastname: Chen
authors.forename: Ying
authors.initials: Y
authors.lastname: Mao
authors.forename: Guo-ping
authors.initials: GP
authors.lastname: Zhang
mesh_terms: D002734:Chlorophyll / Q000032:analysis*; D002874:Chromosome Mapping; D001467:Hordeum / Q000235:genetics*; D010641:Phenotype; D018515:Plant Leaves / Q000235:genetics; D040641:Quantitative Trait Loci
chemical_list: D002734:Chlorophyll