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Journal article
Identification of QTL underlying the leaf length and area of different leaves in barley
Scientific reports, Vol.9(1), 4431
2019
PMCID: PMC6418291
PMID: 30872632
Abstract
Leaf is the main organ of photosynthesis, which significantly impacts crop yield. A high-density linkage map containing 1894 single nucleotide polymorphism (SNP) and 68 simple sequence repeats (SSR) markers was used to identify quantitative trait locus (QTL) for flag leaf length (FLL), second leaf length (SLL), third leaf length (TLL), fourth leaf length (FOLL), flag leaf area (FLA), second leaf area (SLA), third leaf area (TLA) and fourth leaf area (FOLA). In total, 57 QTLs underlying the top four leaf length and area traits were identified and mapped on chromosome 2H, 3H, 4H and 7H. Individual QTL accounted for 5.17% to 37.11% of the phenotypic variation in 2015 and 2016. A major stable QTL qFLL2-2 close to the marker 2HL_25536047 was identified on the long arm of chromosome 2H. The most important QTL clustered region at M_256210_824 - 2HL_23335246 on chromosome 2H was associated with FLL, SLL, FLA and SLA and explained high phenotypic variation. These findings provide genetic basis for improving the leaf morphology of barley. In addition, our results suggested that the top four leaves were significantly positively correlated with plant height and some yield-related traits.
Details
- Title
- Identification of QTL underlying the leaf length and area of different leaves in barley
- Authors/Creators
- Binbin Du - Huazhong Agricultural UniversityLipan Liu - Huazhong Agricultural UniversityQifei Wang - Huazhong Agricultural UniversityGenlou Sun - Saint Mary's UniversityXifeng Ren - Huazhong Agricultural UniversityChengdao Li - Government of Western AustraliaDongfa Sun - Huazhong Agricultural University
- Publication Details
- Scientific reports, Vol.9(1), 4431
- Identifiers
- 991005570082807891
- Copyright
- © The Author(s) 2019
- Murdoch Affiliation
- Centre for Crop and Food Innovation
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science