Loss of Function of the E1-Like-b Gene Associates With Early Flowering Under Long-Day Conditions in Soybean.

ABSTRACT: Photoperiod response of flowering determines plant adaptation to different latitudes. Soybean, a short-day plant, has gained the ability to flower under long-day conditions during the growing season at higher latitudes, mainly through dysfunction of phytochrome A genes (E3 and E4) and the floral repressor E1. In this study, we identified a novel molecular genetic basis of photoperiod insensitivity in Far-Eastern Russian soybean cultivars. By testcrossing these cultivars with a Canadian cultivar Harosoy near-isogenic line for a recessive e3 allele, followed by association tests and fine mapping, we determined that the insensitivity was inherited as a single recessive gene located in an 842-kb interval in the pericentromeric region of chromosome 4, where

SUBMITTER: Zhu J 

PROVIDER: S-EPMC6331540 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature