Asymmetric birth and death of type I and type II MADS-box gene subfamilies in the rubber tree facilitating laticifer development.

ABSTRACT: The rubber tree (Hevea brasiliensis Muell. Arg.) is a rubber producing crop and contains specialized laticifers. MADS-box genes are a family of transcription factor genes that regulate plant development, especially floral organ and gametophyte development. 97 MADS-box genes were identified in the rubber tree through transcriptomes and genome mining. 93.8% of the genes were mapped onto the genome scaffolds in correspondence to the coverage (93.8%) of current version of sequenced genome. Phylogenetic analysis indicates that type II MADS-box genes have been more actively duplicated than their orthologous genes in Arabidopsis and rice, so that most (70, 72.2%) of the MADS-box genes in the rubber tree belong to type II subfamily. This is a high percentage compared to those in Arabidopsis (43.7%

SUBMITTER: Kumpeangkeaw A 

PROVIDER: S-EPMC6443149 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature