Fruit sugar hub: gene regulatory network associated with soluble solids content (SSC) in Prunus persica.

Autor: Núñez-Lillo G; Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota, Chile. gerardo.nunez@pucv.cl., Lillo-Carmona V; Departamento de Fruticultura y Enología, Facultad de Agronomía y Sistemas Naturales, Pontificia Universidad Católica de Chile, Santiago, Chile.; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile., Pérez-Donoso AG; Departamento de Fruticultura y Enología, Facultad de Agronomía y Sistemas Naturales, Pontificia Universidad Católica de Chile, Santiago, Chile., Pedreschi R; Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota, Chile.; Millennium Institute Center for Genome Regulation (CRG), Santiago, Chile., Campos-Vargas R; Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile., Meneses C; Departamento de Fruticultura y Enología, Facultad de Agronomía y Sistemas Naturales, Pontificia Universidad Católica de Chile, Santiago, Chile. claudio.meneses@uc.cl.; Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile. claudio.meneses@uc.cl.; Millennium Institute Center for Genome Regulation (CRG), Santiago, Chile. claudio.meneses@uc.cl.; ANID-Millennium Science Initiative Program - Millennium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Chile. claudio.meneses@uc.cl.
Jazyk: angličtina
Zdroj: Biological research [Biol Res] 2024 Sep 06; Vol. 57 (1), pp. 63. Date of Electronic Publication: 2024 Sep 06.
DOI: 10.1186/s40659-024-00539-5
Abstrakt: Chilean peach growers have achieved worldwide recognition for their high-quality fruit products. Among the main factors influencing peach fruit quality, sweetness is pivotal for maintaining the market's competitiveness. Numerous studies have been conducted in different peach-segregating populations to unravel SSC regulation. However, different cultivars may also have distinct genetic conformation, and other factors, such as environmental conditions, can significantly impact SSC. Using a transcriptomic approach with a gene co-expression network analysis, we aimed to identify the regulatory mechanism that controls the sugar accumulation process in an 'O × N' peach population. This population was previously studied through genomic analysis, associating LG5 with the genetic control of the SSC trait. The results obtained in this study allowed us to identify 91 differentially expressed genes located on chromosome 5 of the peach genome as putative new regulators of sugar accumulation in peach, together with a regulatory network that involves genes directly associated with sugar transport (PpSWEET15), cellulose biosynthesis (PpCSLG2), flavonoid biosynthesis (PpPAL1), pectin modifications (PpPG, PpPL and PpPMEi), expansins (PpEXPA1 and PpEXPA8) and several transcription factors (PpC3H67, PpHB7, PpRVE1 and PpCBF4) involved with the SSC phenotype. These results contribute to a better understanding of the genetic control of the SSC trait for future breeding programs in peaches.
(© 2024. The Author(s).)
Databáze: MEDLINE
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