School of Biological Sciences, University of Bristol, Woodland Road, Bristol, BS8 1UG, UK.
J Fish Biol. 2010 Feb;76(2):435-41. doi: 10.1111/j.1095-8649.2009.02549.x.
The evolutionary origin of the only north-west Saharan haplochromine cichlid, Astatotilapia desfontainii, was explored using mitochondrial DNA sequences. Phylogenetic analyses revealed that this species belonged to the main East African-Nilotic haplochromine clade, but was a distinct lineage that diverged from modern haplochromines in the Pliocene. The results suggest that A. desfontainii is a relict haplochromine lineage that has endured major climate fluctuations in North Africa.
利用线粒体 DNA 序列探讨了唯一分布于西北撒哈拉地区的haplochromine 慈鲷，Astatotilapia desfontainii 的进化起源。系统发育分析表明，该物种属于主要的东非-尼罗河流域haplochromine 类群，但却是一个与现代haplochromines 在上新世分化的独特谱系。研究结果表明，A. desfontainii 是一个在北非经历了主要气候波动的haplochromine 遗迹谱系。
