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Strawberry soluble solids QTL with inverse effects on yield.
Fan, Zhen; Verma, Sujeet; Lee, Hana; Jang, Yoon Jeong; Wang, Yu; Lee, Seonghee; Whitaker, Vance M.
Afiliação
  • Fan Z; IFAS Gulf Coast Research and Education Center, Horticultural Sciences Department, University of Florida, Wimauma, Florida 33597, USA.
  • Verma S; IFAS Gulf Coast Research and Education Center, Horticultural Sciences Department, University of Florida, Wimauma, Florida 33597, USA.
  • Lee H; Department of Food Science and Human Nutrition, IFAS Citrus Research and Education Center, University of Florida, Lake Alfred, Florida 33850, USA.
  • Jang YJ; IFAS Gulf Coast Research and Education Center, Horticultural Sciences Department, University of Florida, Wimauma, Florida 33597, USA.
  • Wang Y; Department of Food Science and Human Nutrition, IFAS Citrus Research and Education Center, University of Florida, Lake Alfred, Florida 33850, USA.
  • Lee S; IFAS Gulf Coast Research and Education Center, Horticultural Sciences Department, University of Florida, Wimauma, Florida 33597, USA.
  • Whitaker VM; IFAS Gulf Coast Research and Education Center, Horticultural Sciences Department, University of Florida, Wimauma, Florida 33597, USA.
Hortic Res ; 11(2): uhad271, 2024 Feb.
Article em En | MEDLINE | ID: mdl-38371635
ABSTRACT
Sugars are the main drivers of strawberry sweetness, and understanding their genetic control is of critical importance for breeding. Large-scale genome-wide association studies were performed in two populations totaling 3399 individuals evaluated for soluble solids content (SSC) and fruit yield. Two stable quantitative trait loci (QTL) on chromosome 3B and 6A for SSC were identified. Favorable haplotypes at both QTL for SSC decreased yield, though optimal allelic combinations were identified with reduced impacts on yield. Metabolites in the starch and sucrose metabolism pathway were characterized and quantified for 23 contrasting genotypes in leaves, white fruit, and red fruit. Variations in sucrose concentrations/efflux indicated genetic variation underlying sucrose accumulation and transportation during fruit ripening. Integration of genome-wide association studies and expression quantitative locus mapping identified starch synthase 4 (FxaC_10g00830) and sugar transporter 2-like candidate genes (FxaC_21g51570) within the respective QTL intervals. These results will enable immediate applications in genomics-assisted breeding for flavor and further study of candidate genes underlying genetic variation of sugar accumulation in strawberry fruit.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Hortic Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Hortic Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Estados Unidos
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