scholarly journals A Molecular Phylogeny of Bivalve Mollusks: Ancient Radiations and Divergences as Revealed by Mitochondrial Genes

PLoS ONE ◽  
2011 ◽  
Vol 6 (11) ◽  
pp. e27147 ◽  
Author(s):  
Federico Plazzi ◽  
Alessandro Ceregato ◽  
Marco Taviani ◽  
Marco Passamonti
Zootaxa ◽  
2010 ◽  
Vol 2662 (1) ◽  
pp. 28 ◽  
Author(s):  
PETER E. STÜBEN ◽  
JONAS J. ASTRIN

A molecular phylogeny of the western Palearctic weevil genus Kyklioacalles Stüben, 1999 is presented, combining two mitochondrial genes (CO1 and 16S) in a Bayesian analysis. Based on molecular data, the validity of the subspecies Kyklioacalles punctaticollis punctaticollis (Lucas, 1849) and Kyklioacalles punctaticollis meteoricus (Meyer, 1909) is discussed and the morphological differentiation of the endophalli and known distributions of both subspecies are verified. Glaberacalles subg. n. (formerly Kyklioacalles punctaticollis-group) and two new species are described, Kyklioacalles atlasicus sp.n. from Morocco and Kyklioacalles plantapilosus sp.n. from Spain. Kyklioacalles berberi (Stüben, 2005), comb. n. and Kyklioacalles olcesei (Tournier, 1873) comb. n. are transferred from Acalles Schoenherr. The molecular results further advocate a transfer of Onyxacalles pyrenaeus (Boheman, 1844) to Kyklioacalles; however this is not supported by morphological evidence. Kyklioacalles almadensis Stüben, 2004 syn. n. (Spain) is synonymized with Kyklioacalles bupleuri Stüben, 2004 (Tunisia). A catalogue of all 40 (sub-)species of Kyklioacalles is given and a key of the species of the subgenus Glaberacalles is presented.


2015 ◽  
Vol 46 (5) ◽  
pp. 411-430 ◽  
Author(s):  
Morgan D. Jackson ◽  
Stephen A. Marshall ◽  
Jeffrey H. Skevington

DNA molecular data are used to generate a phylogeny for the micropezid subfamily Taeniapterinae. Thirty-two taeniapterine species were sampled, including 10 of the 20 New World genera recognized by Steyskal, as well as one genus formerly treated as a synonym of Poecilotylus Hennig (Hemichaeta Steyskal). Five species from the Micropezinae were included as outgroups. A total DNA dataset of 4705 bp, including mitochondrial genes (12S and cytochrome c oxidase I (COI)) and nuclear coding genes (wingless and CAD), was analysed using maximum parsimony and Bayesian inference. The genus Taeniaptera Macquart was found to be non-monophyletic with respect to the remainder of the Taeniapterini analysed here. Taeniaptera is restricted to the Taeniaptera trivittata Macquart species group, Mitromyia Cresson is resurrected to contain the Taeniaptera grata (Wulp) species group, and Paragrallomyia Hendel is resurrected to contain most species previously considered Taeniaptera. Poecilotylus is recognized as a paraphyletic group awaiting further research.


Zootaxa ◽  
2021 ◽  
Vol 4996 (3) ◽  
pp. 540-554
Author(s):  
XIAO-YU ZHU ◽  
YI-JIAO LIU ◽  
YUN BAI ◽  
CRISTIAN ROMÁN-PALACIOS ◽  
ZHENG LI ◽  
...  

Six species of geckos in the genus Goniurosaurus have been recorded from Guangxi, China. Here we describe a new species, Goniurosaurus chengzheng sp. nov. The new species is similar to allied species from Guangxi, but unique in a combination of the following characters: (1) four body bands with three between limb insertions; (2) precloacal pores 20; (3) body color reddish- brown; (4) snout to eye distance: eye to ear distance < 1. We used the mitochondrial genes 16S and cytb to confirm the distinctiveness of the species and place it within a molecular phylogeny of Goniurosaurus. The type specimens are deposited in the Museum of Biology, East China Normal University (ECNU).  


Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 26 ◽  
Author(s):  
LEI YANG ◽  
M. VINCENT HIRT ◽  
TETSUYA SADO ◽  
M. ARUNACHALAM ◽  
RAJA MANICKAM ◽  
...  

The barbin genera Discherodontus Rainboth 1989, Chagunius Smith 1938 and Hypselobarbus Bleeker 1860 are distrib-uted in Southeast and South Asia and are among the least studied taxa of the order Cypriniformes. Few morphologicalstudies have been conducted on these genera and only a very limited number of morphological characters were employedto hypothesize or infer their monophyly, inter-relationships, and relationships with other barbins. The main aim of thisstudy is to examine the monophyly of these three genera and propose hypothesis of relationship among these taxa andother barbins based on a molecular phylogeny of the subfamily Cyprininae. A total of 106 cypriniform species were sam-pled, including 64 species and 31 genera of barbins collected from Eurasia and Africa. Partitioned maximum likelihoodanalysis was performed using DNA sequences derived from five mitochondrial genes (5601 bp): cytochrome c oxidasesubunit I (COI), cytochrome b (Cyt b), 16S ribosomal RNA (16S), NADH dehydrogenase subunits 4 (ND4) and subunits5 (ND5). The resulting phylogeny demonstrates that, under current taxon sampling, Discherodontus, Chagunius, andHypselobarbus are all monophyletic genera. Together they do not form a monophyletic group, as hypothesized in previousstudies, but are instead part of three distinct and unrelated clades. Discherodontus constitutes the basal lineage of a cladeformed by Southeast Asian barbins (e.g. Poropuntius, Hypsibarbus, Balantiocheilos); Chagunius is basal to a cladeformed mainly by Puntius and allies (although this relationship was only weakly supported); Hypselobarbus and Barbuscarnaticus formed a clade sister to a clade including Tor, Neolissochilus, Labeobarbus, and Varicorhinus. Homoplasy andshared plesiomorphy of some hypothesized important morphological characters employed in previous studies that led researchers to hypothesize earlier relationships are discussed.


Zootaxa ◽  
2010 ◽  
Vol 2603 (1) ◽  
pp. 53 ◽  
Author(s):  
R. TERRY CHESSER ◽  
CAROL K. L. YEUNG ◽  
CHENG-TE YAO ◽  
XIU-HUA TIAN ◽  
SHOU-HSIEN LI

Spoonbills (genus Platalea) are a small group of wading birds, generally considered to constitute the subfamily Plataleinae (Aves: Threskiornithidae). We reconstructed phylogenetic relationships among the six species of spoonbills using variation in sequences of the mitochondrial genes ND2 and cytochrome b (total 1796 bp). Topologies of phylogenetic trees reconstructed using maximum likelihood, maximum parsimony, and Bayesian analyses were virtually identical and supported monophyly of the spoonbills. Most relationships within Platalea received strong support: P. minor and P. regia were closely related sister species, P. leucorodia was sister to the minor-regia clade, and P. alba was sister to the minor-regia-leucorodia clade. Relationships of P. flavipes and P. ajaja were less well resolved: these species either formed a clade that was sister to the four-species clade, or were successive sisters to this clade. This phylogeny is consistent with ideas of relatedness derived from spoonbill morphology. Our limited sampling of the Threskiornithinae (ibises), the putative sister group to the spoonbills, indicated that this group is paraphyletic, in agreement with previous molecular data; this suggests that separation of the Threskiornithidae into subfamilies Plataleinae and Threskiornithinae may not be warranted.


Author(s):  
RAFAEL ROBLES ◽  
CHRISTOPHER TUDGE ◽  
PETER DWORSCHAK ◽  
GARY POORE ◽  
DARRYL FELDER

Zootaxa ◽  
2019 ◽  
Vol 4565 (1) ◽  
pp. 108 ◽  
Author(s):  
WEIBIN JIANG ◽  
HAIYAN HE ◽  
YUANYUAN LI ◽  
YING WANG ◽  
CHEN GE ◽  
...  

The butterfly tribe Baorini Doherty, 1886 is a large group of skippers. In this study, a total of 8 genera and 41 species of putative members of this tribe, which represent most of the generic diversity and nearly all the species diversity of the group in China, were sequenced for two mitochondrial genes and three nuclear genes (2084 bp). Phylogenetic relationships and subdivision of this tribe were investigated and the status of the genera are discussed. Partitioned maximum likelihood analyses were performed based on the combined dataset. Our results suggest that the data are split into two well-supported clades in the phylogeny tree. This analysis also represents the most complete phylogenetic analysis of the tribe Baorini in China to date, and includes several genera and species that have been previously excluded from published phylogenies of this group. 


2008 ◽  
Vol 37 (2) ◽  
pp. 175-193 ◽  
Author(s):  
Armelle Coeur d’acier ◽  
Giuseppe Cocuzza ◽  
Emmanuelle Jousselin ◽  
Vincenzo Cavalieri ◽  
Sebastiano Barbagallo

2014 ◽  
Vol 28 (2) ◽  
pp. 145 ◽  
Author(s):  
Amanda M. Windsor ◽  
Darryl L. Felder

Mithracid crabs comprise a primarily subtidal reef- and rubble-dwelling group inhabiting both tropical and subtropical seas. Despite their relative ubiquity in many hard-substrate environments, there has been little consensus about their phylogenetic relationships or whether their group rank should be that of subfamily or family. We have used a combined molecular dataset of two nuclear (18S, H3) and three mitochondrial (12S, 16S, COI) genes to build a preliminary molecular phylogeny of Majoidea in order to examine the membership of Mithracidae. We then built a second molecular phylogeny based on three mitochondrial genes to assess the internal composition of the family, and conducted comparative morphological examinations of genera and species that resolved in unexpected positions on the phylogram. Four genera are designated under new or resurrected names on the basis of molecular and morphological characters, while memberships of several other existing genera are modified. Following review of molecular and morphological characters, the genera Coelocerus, Cyclocoeloma, Cyphocarcinus, Leptopisa, Micippa, Picrocerodes, Stenocionops and Tiarinia are provisionally excluded from Mithracidae s.s., while Hemus and Pitho are included in it. A key to genera of Mithracidae is provided.


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