Phylogeny with introgression in Habronattus jumping spiders (Araneae: Salticidae)

BMC Evolutionary Biology
Geneviève Leduc-Robert, Wayne P Maddison

Abstract

Habronattus is a diverse clade of jumping spiders with complex courtship displays and repeated evolution of Y chromosomes. A well-resolved species phylogeny would provide an important framework to study these traits, but has not yet been achieved, in part because the few genes available in past studies gave conflicting signals. Such discordant gene trees could be the result of incomplete lineage sorting (ILS) in recently diverged parts of the phylogeny, but there are indications that introgression could be a source of conflict. To infer Habronattus phylogeny and investigate the cause of gene tree discordance, we assembled transcriptomes for 34 Habronattus species and 2 outgroups. The concatenated 2.41 Mb of nuclear data (1877 loci) resolved phylogeny by Maximum Likelihood (ML) with high bootstrap support (95-100%) at most nodes, with some uncertainty surrounding the relationships of H. icenoglei, H. cambridgei, H. oregonensis, and Pellenes canadensis. Species tree analyses by ASTRAL and SVDQuartets gave almost completely congruent results. Several nodes in the ML phylogeny from 12.33 kb of mitochondrial data are incongruent with the nuclear phylogeny and indicate possible mitochondrial introgression: the internal relationships ...Continue Reading

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Citations

Oct 17, 2019·Molecular Ecology·Takahiro HiranoSatoshi Chiba
Dec 11, 2019·The Plant Journal : for Cell and Molecular Biology·Nadine BernhardtFrank R Blattner
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May 3, 2021·BMC Bioinformatics·Ben Bettisworth, Alexandros Stamatakis

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Software Mentioned

HIT
FASTQC
BLAST
custom
Transdecoder
Mesquite
ASTRAL
ea
mcf
MrBayes

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