Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera: Formicidae), a Mesoamerican Ant Clade
Species Paraphyly and Social Parasitism: Phylogenomics, Morphology, and Geography Clarify the Evolution of the Pseudomyrmex elongatulus Group (Hymenoptera: Formicidae), a Mesoamerican Ant Clade
复制标题
物种并系性和社会寄生:系统基因组学、形态学和地理学阐明了中美洲蚂蚁分支 Pseudomyrmex elongatulus 群(膜翅目:蚁科)的进化
DOI:
10.1093/isd/ixab025
复制
发表时间:
2022
影响因子:
3.4
通讯作者:
Sosa-Calvo, ed., Jeffrey
中科院分区:
文献类型:
--
作者:
Ward, Philip S.;Branstetter, Michael G.;Sosa-Calvo, ed., Jeffrey
Using genetic, morphological, and geographical evidence, we investigate the species-level taxonomy and evolutionary history of thePseudomyrmex elongatulusgroup, a clade of ants distributed from southwestern United States to Costa Rica. Through targeted enrichment of 2,524 UCE (ultraconserved element) loci we generate a phylogenomic data set and clarify the phylogenetic relationships and biogeographic history of these ants. The crown group is estimated to have originated ~8 Ma, in Mexico and/or northern Central America, and subsequently expanded into southern Central America and the southwestern Nearctic. TheP. elongatulusgroup contains a mix of low- and high-elevation species, and there were apparently multiple transitions between these habitat types. We uncover three examples of one species—of restricted or marginal geographical distribution—being embedded phylogenetically in another species, rendering the latter paraphyletic. One of these cases involves an apparent workerless social parasite that occurs sympatrically with its parent species, with the latter serving as host. This suggests a sympatric origin of the parasite species within the distribution range of its host. Species boundaries are tested using three molecular delimitation approaches (SODA, bPTP, BPP) but these methods generate inflated species estimates (26–46 species), evidently because of a failure to distinguish population structure from species differences. In a formal taxonomic revision of theP. elongatulusgroup, based on almost 3,000 specimens from ~625 localities, we allow for geographic variation within species and we employ distinctness-in-sympatry criteria for testing hypotheses about species limits. Under these guidelines we recognize 13 species, of which nine are new:P. arcanus,sp. nov.(western Mexico);P. capillatus,sp. nov.(western Mexico);P. cognatus,sp. nov.(Chiapas, Mexico to Nicaragua);P. comitator,sp. nov.(Chiapas, Mexico);P. ereptor,sp. nov.(Veracruz, Mexico);P. exoratus,sp. nov.(southeastern Mexico, Honduras);P. fasciatus,sp. nov.(Chiapas, Mexico to Costa Rica);P. nimbus,sp. nov.(Costa Rica); andP. veracruzensis,sp. nov.(Veracruz, Mexico). Our study highlights the value of combining phylogenomic, phenotypic, and geographical data to resolve taxonomic and evolutionary questions.
登录
查看更多内容
影响因子:
0.9
作者:
N. Ladino;R. Feitosa
通讯作者:
R. Feitosa
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
B. Cutler
通讯作者:
B. Cutler
DOI:
--
发表时间:
1937
期刊:
影响因子:
--
作者:
H. Stitz;Norm Johnson;Joe Cora
通讯作者:
Joe Cora
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
P. S. Ward
通讯作者:
P. S. Ward
DOI:
--
发表时间:
1958
期刊:
影响因子:
--
作者:
W. W. Kempf;Norm Johnson;Joe Cora
通讯作者:
Joe Cora