Homoeolog expression bias and expression level dominance (ELD) in four tissues of natural allotetraploid Brassica napus.

ABSTRACT:

Background

Allopolyploidy is widespread in angiosperms, and they can coordinate two or more different genomes through genetic and epigenetic modifications to exhibit stronger vigor and adaptability. To explore the changes in homologous gene expression patterns in the natural allotetraploid Brassica napus (A_nA_nC_nC_n) relative to its two diploid progenitors, B. rapa (A_rA_r) and B. oleracea (C_oC_o), after approximately 7500 years of domestication, the global gene pair expression patterns in four major tissues (stems, leaves, flowers and siliques) of these three species were analyzed using an RNA sequencing approach.

Results

The results showed that the 'transcriptomic shock' phenomenon was allev

SUBMITTER: Li M 

PROVIDER: S-EPMC7191788 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature