Mapping and identification of QTLs for low light tolerance traits in grapevine.

ABSTRACT:

Background

Low light is a major limiting factor in greenhouse grapevine cultivation, particularly during winter and early spring. To investigate the genetic basis of low light tolerance, a population of 198 F₁ individuals derived from a cross between low light-tolerant and low light-sensitive grapevine varieties was used in this study.

Results

SNP markers were converted into bin markers using the self-developed VCF_to_binMap analysis pipeline, and a genetic map was constructed containing 19 linkage groups with a total length of 1161.95 cM and an average marker distance of 0.71 cM. Phenotypic analysis revealed significant segregation for chlorophyll content and light compensation point (LCP) in the F1 population, with traits approximately following a normal distrib

SUBMITTER: Ji X 

PROVIDER: S-EPMC12275321 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature