Copepoda source details
Liu, C.C., Y.S. Lin, W.Q. Cao, L.P. Fang. (2008). Comparative studies of mitochondrial COI sequence between two kinds of Acartia species from Xiamen waters. Xiamen Daxue Xuebao, (Ziran Kexue Ban). 47(3):419-425. (Chinese).
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Liu, C.C., Y.S. Lin, W.Q. Cao, L.P. Fang
2008
Comparative studies of mitochondrial COI sequence between two kinds of Acartia species from Xiamen waters.
Xiamen Daxue Xuebao, (Ziran Kexue Ban)
47(3):419-425. (Chinese).
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Acartia spinicauda and A.pacifica are the sibling species in southeast coast of China.Taxonomic discrimination between the two species relies on subtle morphological characteristics.They are different with each other in seasonal distribution,but appear together at the end of autumn.The most interesting thing is that their female individuals have intermediate form.For this study,the molecular population genetic diversity of A.spinicauda and A.pacifica was described based on DNA sequence variation for a 709 base pair region of the mitochondrial COI gene.Samples of the two Acartia species were collected from Xiamen waters from May to October 2004.The average genetic distance of A.spinicauda and A.pacifica is 15.6% based on the 709 bps in mtCOI fragments,it would be concluded that they are different species for a certainty.We also found two kinds of intermediate forms between this two species,and defined their taxonomic status.According to the results,we bring forward a new morphological taxonomic method to distinguish the two kinds of Acartia species and their intermediate forms
Acartia pacifica Steuer, 1915 represented as Acartia (Odontacartia) pacifica Steuer, 1915 (additional source)
Acartia spinicauda Giesbrecht, 1889 represented as Acartia (Odontacartia) spinicauda Giesbrecht, 1889 (additional source)
Acartia spinicauda Giesbrecht, 1889 represented as Acartia (Odontacartia) spinicauda Giesbrecht, 1889 (additional source)