Genome-wide analysis of the citrus B3 superfamily and their association with somatic embryogenesis.

ABSTRACT:

Background

In citrus, genetic improvement via biotechnology is hindered by the obstacle of in vitro regeneration via somatic embryogenesis (SE). Although a few B3 transcription factors are reported to regulate embryogenesis, little is known about the B3 superfamily in citrus, and which members might be involved in SE.

Results

Genome-wide sequence analysis identified 72 (CsB3) and 69 (CgB3) putative B3 superfamily members in the genomes of sweet orange (Citrus sinensis, polyembryonic) and pummelo (C. grandis, monoembryonic), respectively. Genome duplication analysis indicated that segmental and tandem duplication events contributed to the expansion of the B3 superfamily in citrus, and that the B3 superfamily evolved under the effect of purifying selection. Phylogenetic relati

SUBMITTER: Liu Z 

PROVIDER: S-EPMC7161213 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature