Identification of Quantitative Trait Loci for Component Traits of Flowering Capacity Across Temperature in Petunia.

ABSTRACT: For ornamental annual bedding plants, flowering performance is critical. Flowering performance includes the length of the flowering period, the longevity of individual flowers, and the number of flowers produced during the flowering period, or flowering capacity. Flowering capacity is a function of several component traits, including the number of branches producing flowers, the number of inflorescences per flowering branch, and the number of flower buds per inflorescence. We employed an F₇ Petunia axillaris × P. exserta recombinant inbred line population to identify QTL for flowering capacity component traits. The population was phenotyped at 14, 17, and 20° over two years. Fifteen robust QTL (rQTL; QTL detected in two or more temperatures/years) were identified a

SUBMITTER: Chen QC 

PROVIDER: S-EPMC6829123 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature