Open AccessComparative transcriptome and metabolome analyses of two strawberry cultivars with different storability
Author(s) -
Kyeonglim Min,
Gibum Yi,
Jeong Gu Lee,
Hyun Sook Kim,
Yoon-Pyo Hong,
Jeong Hee Choi,
Sooyeon Lim
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0242556
Subject(s) - postharvest , cultivar , transcriptome , metabolome , biology , ripening , fragaria , sugar , proteome , botany , gene expression , horticulture , gene , metabolomics , food science , genetics , bioinformatics
Postharvest storability is an important trait for breeding strawberry ( Fragaria × ananassa Duch.). We evaluated the postharvest fruit quality of five strawberry cultivars (‘Durihyang’, ‘Kingsberry’, ‘Maehyang’, ‘Seolhyang’, and ‘Sunnyberry’) and identified differences in their fruit ripening during the transition from the big-green to fully-red stage between two cultivars with the highest (‘Sunnyberry’) and lowest (‘Kingsberry’) storability, using comparative transcriptome and -metabolome analysis. The differentially expressed genes revealed transcriptome changes related to anthocyanin biosynthesis and cell walls. Consistently, the metabolites of both cultivars showed general changes during ripening along with cultivar-specific characteristics in sugar and amino acid profiles. To identify the genes responsible for storability differences, we surveyed the expression of transcription factors, and found that the expression levels of WRKY31 , WRKY70 , and NAC83 correlated with delayed senescence and increased storability. Among them, the expression levels of NAC83 , and its downstream target genes, in the five cultivars suggested that NAC83 expression can be used to predict postharvest strawberry fruit storability.