PHYLOGENETIC RELATIONSHIPS AMONG SOME GROUPS OF GULLS BASED ON COMPLETE SEQUENCES OF THE MITOCHONDRIAL CYT B GENE
In order to reconstruct a robust phylogenetic relationship and explore the phylogenetic status of four gulls, the complete mitochondrial Cyt b gene sequences of Larus relictus, Larus brunnicephalus,Sterna hirundo and Gelochlidon nilotica, collected from Hongjiannao wedand, were determined, and analyzed with other 32 species that have completely sequenced.The results showed that the entire mitochondrial Cyt b gene sequences of four gulls were all 1 143 bp in length.The topology structure of MP and ML trees are the same with that of Bayes tree, and this support that Larus relictus, Larus ichthyaetus, Larus audouinii and Larus melanocephalus should be belonged to the Blackheaded species, but Larus brunnicephalus categorized into the Masked species.Larus relictus is genetically most related to Larus audlouinii, more dose to Larus ichthyaetus,but distant with Larus brunnicephalus in kinship.It is also supported that Sterna hirundo should be belonged to Black cap spedes with Gelochlidon nilotica, Sterna and Thalasseus are dose in genetic, Gelochdidon is so antiquated that it is divided out earlier than others.As a monotypic family, Chionididae is partitioned from gulls in undergoing different selection pressures.We suggest that Larus drrocephalus should be moved from Masked species to the Hooded species.The topological structure of Laridae, Stemidae, and Rynchopidae are unresolved in this study and should be further investigated.
GullsCyt b genephylogenetic relationshipsevolutionary status
NETL
NSTL
万方数据
维普
