作者: Marco Barucca , Adriana Canapa , Maria Biscotti
DOI: 10.3390/JDB4010012
关键词: Phylum 、 Body plan 、 Zoology 、 Biology 、 Gene 、 Gene duplication 、 Hox gene 、 Evolutionary biology 、 Lophotrochozoa 、 Clade 、 Lineage (evolution)
摘要: Hox genes are regulators of animal embryonic development. Changes in the number and sequence as well their expression patterns have been related to evolution body plan. Lophotrochozoa is a clade Protostomia characterized by several phyla which show wide morphological diversity. Despite that works summarized this review emphasize fragmentary nature data available regarding presence genes, they also offer interesting insight into cluster role played phyla. However, involved lophotrochozoan ancestor still question debate. The presented here suggest at least nine were present while two other Lox4 Post-2, may either or arisen result duplication Brachiopoda-Mollusca-Annelida lineage. Spatial temporal collinearity feature gene was probably deuterostomes protostomes. Lophotrochozoa, it has detected only few species belonging Annelida Mollusca.