Use of beta-actin gene intron 2 as a phylogenetic marker in fish taxonomy

Intron 2 of the beta -actin genes from several fish species was sequenced a nd aligned with a Clustal W program for maximum similarity. From the maximu m similarity and phylip data, it was noted that the intron 2 sequences woul d be useful for establishing a molecular phylogenetic tree and in elucidati ng the gene flow through evolution, especially at the family level.