Guo Yusong, Wang Zhongduo, Liu Chuwu, Liu Li, Liu Yun
Fisheries College, Guangdong Ocean University, Zhanjiang, 524025, China.
Mar Biotechnol (NY). 2007 Nov-Dec;9(6):682-8. doi: 10.1007/s10126-007-9012-6. Epub 2007 Oct 2.
Phylogenetic relationships of intra- and interspecies were elucidated based on complete cytochrome b (cyt b) and cytochrome c oxidase subunit II (COII) gene sequences from 12 recognized species of genus Lutjanus Bloch in the South China Sea (SCS). Using the combined data set of consensus cyt b and COII gene sequences, interspecific relationships for all 12 recognized species in SCS were consistent with Allen's morphology-based identifications, with strong correlation between the molecular and morphological characteristics. Monophyly of eight species (L. malabaricus, L. russellii, L. stellatus, L. bohar, L. johnii, L. sebae, L. fulvus, and L. fulviflamma) was strongly supported; however, the pairs L. vitta/L. ophuysenii and L. erythropterus/L. argentimaculatus were more similar than expected We inferred that L. malabaricus exists in SCS, and the introgression caused by hybridization is the reason for the unexpectedly high homogeneity.
基于南海12种已确认的笛鲷属（Lutjanus Bloch）鱼类完整的细胞色素b（cyt b）和细胞色素c氧化酶亚基II（COII）基因序列，阐明了种内和种间的系统发育关系。利用cyt b和COII基因序列的合并数据集，南海12种已确认鱼类的种间关系与艾伦基于形态学的鉴定结果一致，分子特征与形态特征之间存在很强的相关性。八个物种（马拉巴笛鲷、勒氏笛鲷、星点笛鲷、金焰笛鲷、约氏笛鲷、千年笛鲷、黄笛鲷和红鳍笛鲷）的单系性得到了有力支持；然而，条纹笛鲷/奥氏笛鲷和红鳍笛鲷/紫红笛鲷这两对的相似性比预期的更高。我们推断南海存在马拉巴笛鲷，杂交导致的基因渗入是其出现意外高同质性的原因。
