배 ‘만풍배’와 ‘대원홍’ 종간 교배집단의 과실 주요 형질 연관 QTL 탐색
Quantitative Trait Loci Analysis Related to Fruit Quality Traits in Interspecific Hybrid Derived from the Cross Between ‘Manpungbae’ and ‘Oharabeni’ Pear (Pyrus spp.)
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초록
Pears (Pyrus spp.) are economically important fruit trees grown extensively worldwide. To identify QTLs related to key agronomically important fruit traits, we conducted QTL analysis using an interspecific 178 F1 populations derived from a cross between ‘Manpungbae’ and ‘Oharabeni’. Phenotyping data, including fruit weight, fruit length and diameter, fruit shape index (FSI), soluble sugar content, fruit firmness (FF), and titratable acidity (TA) were investigated from 2016 to 2018. Using the previously constructed genetic linkage map together with the three-year phenotypic dataset, we detected 14 significant QTLs associated with the control of fruit weight, fruit length and diameter, FSI, FF, and TA on linkage groups 3, 10, 11, 12, and 13. These findings provide a useful resource for advancing genetic and genomic studies in pears and will aid breeding efforts to improve major fruit traits.
Abstract
Pears (Pyrus spp.) are economically important fruit trees grown extensively worldwide. To identify QTLs related to key agronomically important fruit traits, we conducted QTL analysis using an interspecific 178 F1 populations derived from a cross between ‘Manpungbae’ and ‘Oharabeni’. Phenotyping data, including fruit weight, fruit length and diameter, fruit shape index (FSI), soluble sugar content, fruit firmness (FF), and titratable acidity (TA) were investigated from 2016 to 2018. Using the previously constructed genetic linkage map together with the three-year phenotypic dataset, we detected 14 significant QTLs associated with the control of fruit weight, fruit length and diameter, FSI, FF, and TA on linkage groups 3, 10, 11, 12, and 13. These findings provide a useful resource for advancing genetic and genomic studies in pears and will aid breeding efforts to improve major fruit traits.