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您的检索式：作者名="Gavin L.Sacks"
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| 1 | Identification of QTLs for berry acid and tannin in a Vitis aestivalisderived‘Norton'-based population显示文摘Acidity and tannins are among the grape berry quality traits that influence wine quality.Despite advantageous environmental tolerances of Vitis aestivalis-derived‘Norton',its acidity and tannin concentrations often deviate from expectations set for V.vinifera.Identification of the genetic determinants of malic acid,tartaric acid,pH,and tannin can assist in the improvement of new hybrid cultivars.For this purpose,a‘Norton'and V.vinifera‘Cabernet Sauvignon'hybrid population containing 223 individuals was used to construct a linkage map containing 384 simple sequence repeat(SSR)and 2,084 genotyping-by-sequencing(GBS)-derived single nucleotide polymorphism(SNP)markers.The resulting map was 1,441.9 cM in length with an average inter-marker distance of 0.75 cM and spanned 19 linkage groups(LGs).Quantitative trait loci(QTLs)were detected for malic acid,tartaric acid,pH,and tannin.QTLs for malic acid(LG 8)and pH(LG 6)were observed across multiple years and explained approximately 17.7%and 18.5%of the phenotypic variation,respectively.Additionally,QTLs for tartaric acid were identified on linkage groups 1,6,7,9,and 17 and tannin on LG 2 in single-year data.The QTLs for tartaric acid explained between 8.8−14.3%and tannin explained 24.7%of the phenotypic variation.The markers linked to these QTLs can be used to improve hybrid cultivar breeding through marker-assisted selection. | Karlene L.Negus Li-Ling Chen Jonathan Fresnedo-Ramírez Heather A.Scott Gavin L.Sacks Lance Cadle-Davidson Chin-Feng Hwang | 2021 | Fruit Research2021，1，1： | 0 |
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