Identification of key genes related to dormancy control in prunus species by meta-analysis of RNAseq Data

Calle, Alejandro ; Saski, Christopher ; Wünsch, Ana (Universidad de Zaragoza) ; Grimplet, Jérôme (Universidad de Zaragoza) ; Gasic, Ksenija

Resumen: Bud dormancy is a genotype-dependent mechanism observed in Prunus species in which bud growth is inhibited, and the accumulation of a specific amount of chilling (endodormancy) and heat (ecodormancy) is necessary to resume growth and reach flowering. We analyzed publicly available transcriptome data from fifteen cultivars of four Prunus species (almond, apricot, peach, and sweet cherry) sampled at endo- and ecodormancy points to identify conserved genes and pathways associated with dormancy control in the genus. A total of 13,018 genes were differentially expressed during dormancy transitions, of which 139 and 223 were of interest because their expression profiles correlated with endo- and ecodormancy, respectively, in at least one cultivar of each species. The endodormancy-related genes comprised transcripts mainly overexpressed during chilling accumulation and were associated with abiotic stresses, cell wall modifications, and hormone regulation. The ecodormancy-related genes, upregulated after chilling fulfillment, were primarily involved in the genetic control of carbohydrate regulation, hormone biosynthesis, and pollen development. Additionally, the integrated co-expression network of differentially expressed genes in the four species showed clusters of co-expressed genes correlated to dormancy stages and genes of breeding interest overlapping with quantitative trait loci for bloom time and chilling and heat requirements.

Idioma: Inglés

DOI: 10.3390/plants11192469

Año: 2022

Publicado en: Plants 11, 19 (2022), 2469 [23 pp.]
ISSN: 2223-7747

Factor impacto JCR: 4.5 (2022)

Categ. JCR: PLANT SCIENCES rank: 43 / 239 = 0.18 (2022) - Q1 - T1

Factor impacto CITESCORE: 5.4 - Environmental Science (Q2) - Agricultural and Biological Sciences (Q1)

Factor impacto SCIMAGO: 0.79 - Ecology (Q1) - Plant Science (Q1) - Ecology, Evolution, Behavior and Systematics (Q1)

Financiación: info:eu-repo/grantAgreement/ES/AEI PID2019-103985RR-I00-AEI-10.13039-501100011033

Tipo y forma: Article (Published version)

Área (Departamento): Área Producción Vegetal (Dpto. CC.Agrar.y Medio Natural)