Phylogenetic placement of the unusual jumping spider Depreissia Lessert, and a new synapomorphy uniting Hisponinae and Salticinae (Araneae, Salticidae)

Published on Jan 5, 2016in ZooKeys1.546
· DOI :10.3897/ZOOKEYS.549.6171
Wayne P. Maddison52
Estimated H-index: 52
(UBC: University of British Columbia),
David R. Maddison28
Estimated H-index: 28
+ 1 AuthorsTamás Szűts8
Estimated H-index: 8
Sources
Abstract
The relationships of the unusual salticid spider Depreissia from central Africa and Borneo have been difficult to resolve, obscured by its highly modified ant-like body. Phylogenetic analysis of the gene 28S strongly supports its placement outside the major clade Salticinae and within the clade of cocalodines, spartaeines and lapsiines, with weaker support for a relationship with the cocalodines in particular. Excluding the genus from the Salticinae is supported also by the presence of a median apophysis on the male palp, and by the lack of a cymbial apical groove cradling the tip of embolus, which is newly presented here as a synapomorphy of Hisponinae plus Salticinae.
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References23
Newest
#1Wayne P. Maddison (UBC: University of British Columbia)H-Index: 52
Abstract The classification of jumping spiders (Salticidae) is revised to bring it into accord with recent phylogenetic work. Of the 610 recognized extant and fossil genera, 588 are placed at least to subfamily, most to tribe, based on both molecular and morphological information. The new subfamilies Onomastinae, Asemoneinae, and Eupoinae, and the new tribes Lapsiini, Tisanibini, Neonini, Mopsini, and Nannenini, are described. A new unranked clade, the Simonida, is recognized. Most other family-...
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#1D. V. Logunov (University of Manchester)H-Index: 1
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#1Wayne P. Maddison (UBC: University of British Columbia)H-Index: 52
#2Daiqin Li (NUS: National University of Singapore)H-Index: 35
Last. Fengxiang Liu (Huda: Hubei University)H-Index: 12
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In order to resolve better the deep relationships among salticid spiders, we compiled and analyzed a molecular dataset of 169 salticid taxa (and 7 outgroups) and 8 gene regions. This dataset adds many new taxa to previous analyses, especially among the non-salticoid salticids, as well as two new genes – wingless and myosin heavy chain. Both of these genes, and especially the better sampled wingless, confirm many of the relationships indicated by other genes. The cocalodines are placed as sister ...
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ABSTRACT A phylogenetic analysis of the two-clawed spiders grouped in Dionycha is presented, with 166 representative species of 49 araneomorph families, scored for 393 characters documented through standardized imaging protocols. The study includes 44 outgroup representatives of the main clades of Araneomorphae, and a revision of the main morphological character systems. Novel terminology is proposed for stereotyped structures on the chelicerae, and the main types of setae and silk spigots are r...
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#1Melissa R. Bodner (UBC: University of British Columbia)H-Index: 5
#2Wayne P. Maddison (UBC: University of British Columbia)H-Index: 52
Abstract Globally distributed, jumping spiders (Salticidae) are species-rich and morphologically diverse. Recent molecular phylogenetic work has revealed that major clades are largely isolated to particular continental regions, suggesting their radiations postdated Mesozoic continental break up, but corroboration from a multi-gene time-calibrated phylogeny has been lacking, and an important tropical forest region, Central and West Africa, has been largely unsampled. Newly sampled species, many f...
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Five new species of lapsiine jumping spiders from Ecuador are described, including the first Lapsias Simon from outsideVenezuela. Lapsias lorax, sp. nov. is known from a cloud forest just west of Quito. A new species from the slopes of Vol-can Sumaco is tentatively assigned to Lapsias, Lapsias guamani sp. nov. Lapsias canandea, sp. nov. is the first lapsiinedescribed from the lowlands west of the Andes. The genus Lapsias is poorly defined, and some of these new species maymerit separate genera w...
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Abstract The phylogeny of the large genus Bembidion and related genera is inferred from four nuclear protein-coding genes (CAD, wingless , arginine kinase, and topoisomerase I), ribosomal DNA (28S and 18S), and the mitochondrial gene cytochrome oxidase I (COI). 230 of the more than 1200 species of Bembidion are sampled, as well as 26 species of five related genera, and 14 outgroups. Nuclear copies (numts) of COI were found sparsely scattered through sampled species. The resulting phylogeny, base...
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#1Wayne P. Maddison (UBC: University of British Columbia)H-Index: 52
Six new species and three new genera of cocalodine jumping spiders are described. Restricted to New Guinea and nearby areas, the Cocalodinae are basal salticids, outside the major salticid clade Salticoida. The new genera are Yamangalea (type species Y. frewana, new species), Tabuina (type species T. varirata, new species) and Cucudeta (type species C. zabkai, new species). In addition to these type species, described are the new species Tabuina rufa, Tabuina baiteta, Cucudeta uzet, Cucudeta gah...
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#1W. P. MaddisonH-Index: 1
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#1Wayne P. Maddison (UBC: University of British Columbia)H-Index: 52
#2Melissa R. Bodner (UBC: University of British Columbia)H-Index: 5
Last. Karen M. Needham (UBC: University of British Columbia)H-Index: 2
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DNA sequence data from four gene regions (28S, 18S, 16S-ND1, and CO1) were gathered from 65 jumping spider (salticid) taxa to supplement previously gathered molecular data for the family's phylogeny. The additional taxa are mostly from Australasia and other regions of the Old World. Bayesian and parsimony analyses support a clade, here called the Astioida, representing a large proportion of the Australasian fauna. Included in the Astioida are, for example, the robustbodied Simaetha and Mopsus, t...
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Background and Aims: Aridification is considered a selective pressure that might have influenced plant diversification. It is suggested that plants adapted to aridity diversified during the Miocene, an epoch of global aridification (≈15 million years ago). However, evidence supporting diversification being a direct response to aridity is scarce, and multidisciplinary evidence, besides just phylogenetic estimations, is necessary to support the idea that aridification has driven diversification. T...
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We present a phylogenetic analysis of spiders using a dataset of 932 spider species, representing 115 families (only the family Synaphridae is unrepresented), 700 known genera, and additional representatives of 26 unidentified or undescribed genera. Eleven genera of the orders Amblypygi, Palpigradi, Schizomida and Uropygi are included as outgroups. The dataset includes six markers from the mitochondrial (12S, 16S, COI) and nuclear (histone H3, 18S, 28S) genomes, and was analysed by multiple meth...
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Animals have evolved an array of pattern-recognition receptor families essential for recognizing conserved molecular motifs characteristic of pathogenic microbes. One such family is the Toll-like receptors (TLRs). On pathogen binding, TLRs initiate specialized cytokine signaling catered to the class of invading pathogen. This signaling is pivotal for activating adaptive immunity in vertebrates, suggesting a close evolutionary relationship between innate and adaptive immune systems. Despite signi...
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Social living has evolved numerous times across a diverse array of animal taxa. An open question is how the transition to a social lifestyle has shaped, and been shaped by, the underlying neurohormonal machinery of social behaviour. The nonapeptide neurohormones, implicated in the regulation of social behaviours, are prime candidates for the neuroendocrine substrates of social evolution. Here, we examined the brains of eight cichlid fish species with divergent social systems, comparing the numbe...
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Depreissia is a little known genus comprising two hymenopteran-mimicking species, one found in Central Africa and one in the north of Borneo. The male of Depreissia decipiens is redescribed, the female is described for the first time. The carapace is elongated, dorsally flattened and rhombus-shaped, the rear of the thorax laterally depressed and transformed, with a pair of deep pits; the pedicel is almost as long as the abdomen. The male palp is unusual, characterized by the transverse deeply sp...
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The lyssomanine jumping spider genus Sumakuru gen. n. is here described for Sumakuru bigal sp. n., from the Bigal River Biological Reserve in Ecuador. Known from a single male, the embolus of the palp takes the form of a smoothly arching curve, and appears fully mobile, being connected to the tegulum by a thin sclerite and a twisted hematodocha. Data from four gene regions (28S, 16SND1, CO1, wingless) indicate that Sumakuru is the sister group to all other sampled lyssomanines, diverging deeply ...
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