Retroduplication and loss of parental genes is a mechanism for the generation of intronless genes in Ciona intestinalis and Ciona savignyi
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Tunicates, the sister clade of vertebrates, have miniature genomes and numerous intronless genes compared to other animals. It is still unclear how the tunicates acquired such a large number of intronless genes. Here, we analyzed sequences and intron-exon orga... ...
