parapenaeopsisdecapodacrustaceaphylogeny16srdnacoi
摘要：The phylogenetic relationship among Chinese Parapenaeopsis species was studied by comparing 16S rDNA and CO1gene sequence. The results showed that Parapenaeopsis hardwickii （Miers, 1878） and P cultrirostris Alcock, 1906 identified fromChinese samples were the same species. Parapenaeopsis cornuta （Kishinouye, 1900）, P. incisa Liu and Wang, 1987, and P. sinicaLiu and Wang, 1987 were different species. However, their systematic relationship were closer than those of other species, and theyformed an advanced branch in the phylogenetic trees. Additionally, the systematic position of P. hardwickii （Miers, 1878）, P. hun-gerfordi Alcock, 1905, and P. tenella （Bate, 1888） were not stable in the phylogenetic trees. More genetic markers such as 18S rDNAand 28S rDNA were supposed to be used to confirm the phylogenic relationship of Parapenaeopsis species.
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