Fine mapping of the QTL cqSPDA2 for chlorophyll content in Brassica napus L.

ABSTRACT:

Background

Chlorophyll is the most important factor enabling plants to absorb, transfer and transform light energy and plays an important role in yield formation. Brassica napus is one of the most important oil crops. Breeding Brassica napus for high light efficiency by improving photosynthetic efficiency has considerable social and economic value. In Brassica napus, there have been studies of the initial location of chlorophyll in seed embryos and pericarps, but there are few reports on the fine mapping of chlorophyll QTLs. We constructed near-isogenic lines (NIL), fine-mapped a chlorophyll locus, and evaluated the effect of this dominant locus on agronomic traits.

Results

The cqSPDA2 locus was mapped to an interval of 21.87-22.91 Mb on the chromosome A02 of Brassica napus

SUBMITTER: Ye J 

PROVIDER: S-EPMC7654151 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature