Phylogeny of Dorippoidea (Crustacea : Decapoda : Brachyura) inferred from three mitochondrial genes

2009 ◽  
Vol 23 (3) ◽  
pp. 223 ◽  
Author(s):  
Y. W. Sin ◽  
Joelle C. Y. Lai ◽  
Peter K. L. Ng ◽  
K. H. Chu
Keyword(s):  
Molecular Markers ◽  
Cytochrome C ◽  
16S Rrna ◽  
Cytochrome C Oxidase ◽  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Mitochondrial Genes ◽  
12S Rrna ◽  
Generic Relationships ◽  
I Gene

The phylogenetic relationships between 10 of 13 genera of crabs from the superfamily Dorippoidea were investigated using mitochondrial 16S rRNA, 12S rRNA and cytochrome c oxidase subunit I gene sequences. The resultant phylogenetic trees based on the three molecular markers support the division of Dorippidae and Ethusidae as monophyletic families within the Dorippoidea. The inferred inter-generic relationships within Dorippidae concur with groupings based on the overall morphology of the carapace and structures of the male first pleopods.

Phylogenetic analysis of the Prionini (Coleoptera: Cerambycidae: Prioninae) from China based on mitochondrial ribosomal RNA genes and Cytochrome oxidase I gene

Zootaxa ◽  
2010 ◽  
Vol 2487 (1) ◽  
pp. 1 ◽  
Author(s):  
BO FENG ◽  
LI CHEN ◽  
YAN-LI E ◽  
KAI-DI ZHENG
Keyword(s):  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Phylogenetic Signal ◽  
Mitochondrial Gene ◽  
Single Gene ◽  
Divergence Time ◽  
Mitochondrial Genes ◽  
12S Rrna ◽  
Molecular Systematic ◽  
Close Relationship

This is the first molecular systematic treatment of the Prionini. Here, three mitochondrial genes were partially sequenced from the Chinese Prionini to analyze phylogenetic relationships. Nucleotide compositions of three mitochondrial genes in the Chinese Prionini are biased toward A and T as in other insects. Ratios of transition vs. transversion (Ts/Tv) in 12S rRNA decrease with divergence time. However, ratios in 16S rRNA first increase with divergence time but decrease when divergence time is prolonged. Some nodes have poor bootstrap values or Bayesian posterior probabilities in phylogenetic trees reconstructed from single mitochondrial gene. In addition, some conflicting clades are found among phylogenetic trees based on a different gene. Therefore, a single mitochondrial gene provides limited phylogenetic signal and phylogenetic relationships based on a single gene sequence may be questionable. The Chinese Prionini is a monophyletic group. However, the genus Dorysthenes is paraphyletic. Dorysthenes fossatus should be transferred from Dorysthenes but the true status of D. fossatus is currently unknown. Species of Dorysthenes (excluding D. fossatus) constitute a monophyletic clade and there is close relationship between Dorysthenes paradoxus and Dorysthenes zivetta.

The genus Leucophenga (Diptera, Drosophilidae), part VII: the subpollinosa species group from China, with morphological and molecular evidence

Zootaxa ◽  
2017 ◽  
Vol 4247 (3) ◽  
pp. 201 ◽  
Author(s):  
JIA HUANG ◽  
YIRUI SU ◽  
HONGWEI CHEN
Keyword(s):  
New Species ◽  
Cytochrome C ◽  
Cytochrome C Oxidase ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Species Group ◽  
Molecular Evidence ◽  
Neighbor Joining ◽  
Bayesian Analyses ◽  
I Gene

Seventeen species of Leucophenga subpollinosa species group are described from China (including 11 new species): L. argentina (de Meijere, 1924); L. flavicosta Duda, 1926; L. formosa Okada, 1987; L. nigroscutellata Duda, 1924; L. subpollinosa (de Meijere, 1914); L. umbratula Duda, 1924; L. aculeata sp. nov.; L. acuticauda sp. nov.; L. cultella sp. nov.; L. cyclophylla sp. nov.; L. flaviclypeata sp. nov.; L. fuscipedes sp. nov.; L. gracilenta sp. nov.; L. latipenis sp. nov.; L. magnicauda sp. nov.; L. rhombura sp. nov.; L. rugatifolia sp. nov. A key to all examined species of the subpollinosa group in the present study is provided. The phylogenetic relationships among the 17 species of the subpollinosa group are reconstructed by NJ (Neighbor-joining) and Bayesian analyses using 98 DNA sequences of COI (cytochrome c oxidase subunit I) gene. The pairwise intra- and interspecific p-distances of aforementioned sequences are summarized. 

Description and phylogenetic relationships of a new trans-Andean species of Elachistocleis Parker 1927 (Amphibia, Anura, Microhylidae)

Zootaxa ◽  
2020 ◽  
Vol 4779 (3) ◽  
pp. 323-340
Author(s):  
JUAN C. SÁNCHEZ-NIVICELA ◽  
PEDRO L. V. PELOSO ◽  
VERÓNICA L. URGILES ◽  
MARIO H. YÁNEZ-MUÑOZ ◽  
YERKA SAGREDO ◽  
...  
Keyword(s):  
New Species ◽  
16S Rrna ◽  
South America ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Mitochondrial Genes ◽  
12S Rrna ◽  
The Andes ◽  
Southern Ecuador ◽  
A New Species

Elachistocleis is a Neotropical genus of microhylid frogs with 18 species, most of which occur east of the Andes in South America. Here, we present a new phylogeny of Gastrophryninae and describe and name a new species of Elachistocleis from southern Ecuador—the first to be found west of the Andes and also the first from Ecuador. Our phylogeny is based on DNA sequences of the mitochondrial genes 12S rRNA, 16S rRNA, COI, and the nuclear genes BDNF, cmyc2, H3A, 28S, SIA1, and Tyr. Elachistocleis araios sp. n., is the sister species of all other Elachistocleis. The finding of this taxon highlights the probability of the existence of more Elachistocleis species west of the Andes. 

Molecular Phylogenetic Relationships of Different Color Forms within Harmonia axyridis Pallas (Coleoptera: Coccinellidae) Based on Sequences of 12S rRNA and 16S rRNA Gene

2011 ◽  
Vol 183-185 ◽  
pp. 757-767
Author(s):  
Da Bin Yao ◽  
De Fu Chi ◽  
Qing Yu Wu ◽  
Xiao Can Li ◽  
Jia Yu
Keyword(s):  
16S Rrna ◽  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Harmonia Axyridis ◽  
Coccinella Septempunctata ◽  
Morphological Data ◽  
12S Rrna ◽  
Rrna Gene ◽  
Molecular Systematic ◽  
Different Color

The high level phylogenetic relationships within Harmonia. axyridis Pallas (Coleoptera: Coccinellidae) was investigated based on nucleotide data from two molecular markers (12S rRNA, 16S rRNA), along with those of four species obtained from GenBank, including Adalia bipunctata, Calvia quatuordecimguttata, Coccinella septempunctata, Propylea quattuordecimpunctata as outgroup taxa to construct NJ (Neighbor Joining), MP (Maximum Parsimony) and Bayesian trees using Mega 4.0, PAUP (Version 4.0 b10) and Mrbayes (version 3.1.2) software packages. Nucleotides composition, pairwise distances, ratio of transition / transversion, considerable variable sites of those segments were analyzed. The results from phylogenetic trees indicated that H .axyridis var. spectabilis Fald. and H. axyridis ab. lunata Hem. had very close relationships. H. axyrisdis ab.½123456789-undevigintisignata Fald. and H. axyridis ab. succinea Hope. were closely related. H. axyridis var. axyridis Pallas. was an original group, and it had derived to be a independent forma earlier than the other 11 formas within H. axyridis according to the molecular phylogeny analyzing results. Previous hypotheses on the evolution of different color forms of H. axyridis Pallas based on morphological data was supported by our molecular systematic analyzing results.

scholarly journals Phylogenetic relationships amongst the snake-eyed lizards of the genus Ablepharus Fitzinger, 1823 (Sauria, Scincidae) in the Iranian Plateau based on mtDNA sequences

Herpetozoa ◽  
2021 ◽  
Vol 34 ◽  
pp. 183-194
Author(s):  
Rasoul Karamiani ◽  
Nasrullah Rastegar-Pouyani ◽  
Eskandar Rastegar-Pouyani
Keyword(s):  
16S Rrna ◽  
Late Miocene ◽  
Phylogenetic Relationships ◽  
Phylogenetic Trees ◽  
Genetic Distances ◽  
12S Rrna ◽  
Rrna Gene ◽  
Western Iran ◽  
Molecular Phylogenetic ◽  
West Azerbaijan

We recovered molecular phylogenetic relationships amongst species of the genus Ablepharus in Iran and Iraq. Partial sequences of three mitochondrial genes (cytochrome C oxidase subunit I – COI, 12S rRNA and 16S rRNA) were analysed. In addition, phylogenetic relationships and taxonomic evaluation of Ablepharus species in Cyprus, India, Greece, Turkey and Syria were performed using partial sequences of the 16S rRNA gene. Phylogenetic trees and estimated genetic distances showed that the Ablepharus populations of Iran and Iraq clustered into three distinct clades. One is found in northwest Iran (A. bivittatus in Ardabil, East and West Azerbaijan and Hamedan Provinces). The second clade, formed by A. chernovi, is found only in Uromia. The third and most heterogeneous clade is divided into two subclades, the first includes two lineages of Ablepharus in Khorasan Razavi and Semnan Provinces (A. pannonicus) and in eastern and south-eastern Iran (A. grayanus); the second subclade is distributed in the eastern part of Iraq and west and south-western Iran (Ablepharus sp.). Our analyses indicated that splitting of A. chernovi within the genus occurred in the early Miocene [about 22.5 million years ago (Mya)]. Ablepharus bivittatus diverged 15.2 Mya, in the middle Miocene. Ablepharus pannonicus diverged in the late Miocene (8.4 Mya) and A. grayanus separated in the late Miocene (6.7 Mya). The lineages of eastern Iraq and south-western Iran (Ablepharus sp.) diverged also in the late Miocene (7.0 Mya).

A new nemertean with a branched proboscis, Gorgonorhynchus citrinus sp. nov. (Nemertea: Pilidiophora), with molecular systematics of the genus

2021 ◽  
Author(s):  
Natsumi Hookabe ◽  
Cong-Mei Xu ◽  
Aoi Tsuyuki ◽  
Naoto Jimi ◽  
Shi-Chun Sun ◽  
...  
Keyword(s):  
Cytochrome C ◽  
16S Rrna ◽  
Cytochrome C Oxidase ◽  
Molecular Systematics ◽  
Phylogenetic Relationships ◽  
18S Rrna ◽  
Histone H3 ◽  
Sister Group ◽  
28S Rrna ◽  
Cerebratulus Lacteus

Among ~1300 species of world nemerteans, seven species in five genera of lineid heteronemerteans have been known to possess a branched proboscis. In this paper, we describe the eighth branched-proboscis species: Gorgonorhynchus citrinus sp. nov. from Okinawa, Japan. We also report Gorgonorhynchus cf. repens Dakin & Fordham, 1931 with uniformly orange body, as a new member for the Japanese nemertean fauna. We infer the phylogenetic relationships between these forms and other members of Lineidae McIntosh, 1874 for which partial sequences of the mitochondrial 16S rRNA and cytochrome c oxidase subunit I, and the nuclear 18S rRNA, 28S rRNA, and histone H3 genes are available in public databases, along with newly sequenced data of another branched-proboscis heteronemertean, Polydendrorhynchus zhanjiangensis (Yin & Zheng, 1984) from China. In the resulting tree, Gorgonorhychus Dakin & Fordham, 1931 was sister group to non-branched-proboscis Dushia Corrêa, 1963, whereas P. zhanjiangensis was sister group to likewise non-branched-proboscis Cerebratulus lacteus (Leidy, 1851). http://zoobank.org/urn:lsid:zoobank.org:pub:685992C5-F595-4C28-9178-256D945E595A

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