DNA polymorphism and selection at the bindin locus in three Strongylocentrotus sp. (Echinoidea).

ABSTRACT:

Background

The sperm gene bindin encodes a gamete recognition protein, which plays an important role in conspecific fertilization and reproductive isolation of sea urchins. Molecular evolution of the gene has been extensively investigated with the attention focused on the protein coding regions. Intron evolution has been investigated to a much lesser extent. We have studied nucleotide variability in the complete bindin locus, including two exons and one intron, in the sea urchin Strongylocentrotus intermedius represented by two morphological forms. We have also analyzed all available bindin sequences for two other sea urchin species, S. pallidus and S. droebachiensis.

Results

The results show that the bindin sequences from the two forms of S. intermedius are intermingled wit

SUBMITTER: Balakirev ES 

PROVIDER: S-EPMC4866015 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature