Genetic dissection of the natural variation of ovule number per ovary in oilseed rape germplasm (Brassica napus L.).

ABSTRACT: Oilseed rape is one of the world's largest oil and industrial crops, providing humans with various products, such as vegetable oil and biofuel. Ovules are the direct precursors of seeds, and ovule number per ovary (ONPO) largely determines seed number per fruit that affects both yield and fitness of seed crops. The ONPO shows wide variation in oilseed rape, whereas the underlying genes and mechanisms are poorly known. The present study performed the genetic, physiological and transcriptomic analyses of ovule number per ovary using an association panel and the extreme lines. The ONPO of 327 accessions planted in four environments showed a large variation from 19.2 to 43.8, indicating a great potential for the further genetic improvement of ovule number. The genome-wide association study (GW

SUBMITTER: Qadir M 

PROVIDER: S-EPMC9513589 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature