Helbig A J, Seibold I
University of Greifswald, Vogelwarte Hiddensee, Kloster, D-18565, Germany.
Mol Phylogenet Evol. 1999 Mar;11(2):246-60. doi: 10.1006/mpev.1998.0571.
Phylogenetic relationships of the reed warbler group (genera Acrocephalus, Hippolais, Chloropeta; Aves: Passeriformes) and their potential relatives were studied using nucleotide sequences (1 kb) of the mitochondrial cytochrome b gene. This species-rich but morphologically poorly differentiated group of insectivorous passerines is distributed in Eurasia, Africa, and Australasia. Intergeneric relationships were poorly resolved, but monophyly of the reed warbler group (including Chloropeta) versus other Sylviidae was strongly supported. A basal polytomy within the reed warbler group consists of seven branches and may indicate a rapid early radiation. In the genus Acrocephalus three major clades were identified, which corresponded to phenotypic groups characterized by body size and plumage patterns. However, current delimitation of some subgenera (Acrocephalus, Lusciniola, Bebrornis) is at variance with our phylogeny estimate, and appropriate revisions are proposed. The genus Hippolais, which may or may not be monophyletic, consisted of two well-supported clades of four species each. Some Acrocephalus taxa whose species status had been doubted (griseldis, tangorum, orientalis, australis) proved to be highly distinct genetically. Genetic distances between members of two pairs of allopatric Hippolais taxa (caligata/rama; opaca/elaeica) were as large or larger than between other closely related warbler species. Overall, cytochrome b sequences resolved phylogenetically young relationships quite well, whereas more ancient nodes remained poorly resolved.
利用线粒体细胞色素b基因的核苷酸序列（1 kb）研究了苇莺类群（苇莺属、靴篱莺属、绿篱莺属；雀形目：鸟类）及其潜在近缘类群的系统发育关系。这个种类丰富但形态分化不明显的食虫雀形目类群分布于欧亚大陆、非洲和澳大拉西亚。属间关系解析得不太清楚，但苇莺类群（包括绿篱莺属）相对于其他莺科鸟类的单系性得到了有力支持。苇莺类群内的一个基部多歧分支由七个分支组成，可能表明早期有一次快速辐射。在苇莺属中，鉴定出了三个主要分支，它们与以体型和羽色模式为特征的表型类群相对应。然而，目前一些亚属（苇莺属、林莺亚属、贝氏莺亚属）的划分与我们的系统发育估计不一致，并提出了适当的修订建议。靴篱莺属可能是单系的，也可能不是，由两个得到有力支持的分支组成，每个分支有四个物种。一些物种地位曾受到质疑的苇莺属分类单元（淡脚苇莺、淡眉苇莺、东方大苇莺、远东苇莺）在遗传上被证明是高度不同的。两对异域分布的靴篱莺属分类单元（靴篱莺/南亚靴篱莺；漠地林莺/白喉林莺）成员之间的遗传距离与其他近缘莺类物种之间的遗传距离一样大或更大。总体而言，细胞色素b序列很好地解析了系统发育较年轻的关系，而更古老的节点仍然解析得不太清楚。
