Phylogeny, migration and geographic range size evolution of Anax dragonflies (Anisoptera: Aeshnidae)
Phylogeny, migration and geographic range size evolution of Anax dragonflies (Anisoptera: Aeshnidae)
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DOI：
10.1093/zoolinnean/zlab046
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发表时间：
2021-08
影响因子：
2.8
通讯作者：
R. Clement;N. Saxton;S. Standring;Preston R. Arnold;K. K. Johnson-K.;David R. Bybee;S. Bybee
中科院分区：
文献类型：
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作者：
R. Clement;N. Saxton;S. Standring;Preston R. Arnold;K. K. Johnson-K.;David R. Bybee;S. Bybee
Anax属是一类世界性的蜻蜓，以其明显的迁徙行为和巨大的体型而闻名。在这里，我们为该组织提供了第一个确定日期的、物种水平的、多基因的、分子系统学，以测试属和物种的限制，以及迁徙和范围大小的进化。我们利用20个物种的5个线粒体和核基因区域(COI、COI/COII、Cytb/ND1、ITS1和PRMT)，用贝叶斯和最大似然法重建了Anax的系统发育。我们发现Anax(包括其假想的姊妹群Hymanax)形成了一个单系群，在单系检测呈阳性的20种物种中，有12种也是单系。Anax的几个种的单系性不太清楚。已知在至少九个物种中发生的迁徙行为被恢复为祖先行为，这种行为至少消失了三次，随后又获得了至少三次。地理分布范围的大小似乎与迁徙行为密切相关。
The genus Anax is a group of cosmopolitan dragonflies noted for its conspicuous migratory behaviours and large size. Here we present the first dated, species-level, multigene, molecular phylogeny for the group to test generic and species-limits, as well as the evolution of migration and range size. Using five mitochondrial and nuclear gene regions (COI, COI/COII, CYTB/ND1, ITS1 and PRMT) from 20 species, we reconstructed a phylogeny of Anax using both a Bayesian and maximum likelihood approach. We found that Anax (including its hypothesized sister group Hemianax) forms a monophyletic group, and that 12 out of 20 species tested positive for monophyly were also monophyletic. The monophyly of several species of Anax is less clear. Migratory behaviour, which is known to occur in at least nine species, is recovered as the ancestral behaviour, which was lost and subsequently gained at least three times. Geographic range size seems to be tightly associated with migratory behaviour.