Phylogenetic reconstruction of the genus Helianthemum (Cistaceae) using plastid and nuclear DNA-sequences: Systematic and evolutionary inferences

Taxon ◽  
2017 ◽  
Vol 66 (4) ◽  
pp. 868-885 ◽  
Author(s):  
Abelardo Aparicio ◽  
Sara Martín-Hernanz ◽  
Clara Parejo-Farnés ◽  
Juan Arroyo ◽  
Sébastien Lavergne ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Nuclear Dna ◽  
Phylogenetic Reconstruction

Porcelain crabs of the genera Pachycheles Stimpson and Neopisosoma Haig (Decapoda : Anomura : Porcellanidae): new premises based on molecular data and comments on phylogenetic relationships in the family

2016 ◽  
Vol 30 (5) ◽  
pp. 509
Author(s):  
Ivana Miranda ◽  
Fernando L. Mantelatto
Keyword(s):  
Dna Sequences ◽  
Nuclear Dna ◽  
Phylogenetic Reconstruction ◽  
Morphological Characteristics ◽  
Taxonomic Status ◽  
Molecular Data ◽  
Significant Advance ◽  
Body Region ◽  
Isthmus Of Panama ◽  
Porcelain Crabs

Porcellanidae Haworth, 1825 is a family of marine anomuran crabs distributed throughout tropical and temperate regions of all the oceans, typically littoral and sublittoral waters, with a considerable diversity of lifestyles, habitats and colouration. Pachycheles Stimpson, 1858 and Neopisosoma Haig, 1960 share, among other morphological characteristics, the fragmentation of the lateral carapace walls. The morphology of this body region was key to supporting the establishment of Neopisosoma, which increased uncertainty about the taxonomic status of these genera due to the high intraspecific variation of this character. Our study reconstructs the phylogenetic relationship between Pachycheles and Neopisosoma based on mitochondrial and nuclear DNA sequences to evaluate whether these are valid taxa. While Pachycheles seems to be monophyletic, the position of Neopisosoma mexicanum (Streets, 1871) indicates that the group is polyphyletic, and deserves further investigation. Pachycheles is revealed to be older than Neopisosoma, and likely originated in the Indo-Pacific, later spreading to the American continent during the early Tertiary. Neopisosoma may have arisen much later in the Caribbean Province before the closure of the Isthmus of Panama, explaining its distribution, which is restricted mainly to Central America. The inclusion of a considerable number of species from both genera represents a significant advance in the study of this controversial group. The phylogenetic reconstruction of Pachycheles unveiled clades corroborated by morphology, but also revealed unclear relationships, which may indicate the potential existence of cryptic species.

scholarly journals Phylogenetic relationships of Cranichidinae and Prescottiinae (Orchidaceae, Cranichideae) inferred from plastid and nuclear DNA sequences

2009 ◽  
Vol 104 (3) ◽  
pp. 403-416 ◽  
Author(s):  
Gerardo A. Salazar ◽  
Lidia I. Cabrera ◽  
Santiago Madriñán ◽  
Mark W. Chase
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Nuclear Dna

Phylogenetics and evolution of the aphid genus Uroleucon based on mitochondrial and nuclear DNA sequences

1999 ◽  
Vol 24 (1) ◽  
pp. 85-93 ◽  
Author(s):  
Nancy A. Moran ◽  
Matthew E. Kaplan ◽  
Michael J. Gelsey ◽  
Troy G. Murphy ◽  
Edwin A. Scholes
Keyword(s):  
Dna Sequences ◽  
Nuclear Dna

scholarly journals Evolutionary Relationship between Two Firefly Species,Curtos costipennisandC. okinawanus(Coleoptera, Lampyridae), in the Ryukyu Islands of Japan Revealed by the Mitochondrial and Nuclear DNA Sequences

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Masahiko Muraji ◽  
Norio Arakaki ◽  
Shigeo Tanizaki
Keyword(s):  
Dna Sequences ◽  
Evolutionary History ◽  
Nuclear Dna ◽  
Evolutionary Relationship ◽  
Early Pleistocene ◽  
Ryukyu Islands ◽  
Mtdna Sequences ◽  
Northern Half ◽  
The Ryukyu Islands ◽  
History Of

The phylogenetic relationship, biogeography, and evolutionary history of closely related two firefly species,Curtos costipennisandC. okinawanus, distributed in the Ryukyu Islands of Japan were examined based on nucleotide sequences of mitochondrial (2.2 kb long) and nuclear (1.1-1.2 kb long) DNAs. In these analyses, individuals were divided among three genetically distinct local groups,C. costipennisin the Amami region,C. okinawanusin the Okinawa region, andC. costipennisin the Sakishima region. Their mtDNA sequences suggested that ancestralC. costipennispopulation was first separated between the Central and Southern Ryukyu areas, and the northern half was then subdivided betweenC. costipennisin the Amami andC. okinawanusin the Okinawa. The application of the molecular evolutionary clocks of coleopteran insects indicated that their vicariance occurred 1.0–1.4 million years ago, suggesting the influence of submergence and subdivision of a paleopeninsula extending between the Ryukyu Islands and continental China through Taiwan in the early Pleistocene.

scholarly journals Molecular phylogeny of Kazimierzus Plisko, 2006 (Clitellata, Kazimierzidae) from the Western and Northern Cape Province inferred from mitochondrial DNA sequences

2020 ◽  
Vol 61 (2) ◽  
pp. 83-92
Author(s):  
Thembeka Clara Nxele ◽  
Jadwiga Danuta Plisko ◽  
Tarombera Mwabvu ◽  
Oliver Tendayi Zishiri
Keyword(s):  
Dna Sequences ◽  
Nuclear Dna ◽  
Integrative Taxonomy ◽  
Cryptic Diversity ◽  
Undescribed Species ◽  
Mitochondrial Marker ◽  
Phylogenetic Reconstructions ◽  
Northern Cape ◽  
Tree Building ◽  
Close Relatedness

Species identification of earthworms using morphology can be challenging and inconclusive as homoplasy in many characters is high. The use of molecular DNA technology, such as the use of conserved regions in mtDNA and nuclear DNA has unravelled the phylogenetic background of several earthworm species. The current study utilised the cytochrome c oxidase subunit I (COI) mitochondrial marker to reconstruct the phylogeny of Kazimierzus Plisko, 2006 species from the Western and Northern Cape provinces of South Africa. Phylogenetic reconstructions were implemented using Bayesian Inference, as well as Maximum Likelihood. Both tree building methods adhered to the monophyly of the majority of the taxa. Results showed that species fell into two clades and validated eleven currently known Kazimierzus species (K. circulatus (Plisko, 1998), K. franciscus (Pickford, 1975), K. guntheri (Pickford, 1975), K. hamerae (Plisko, 1998), K. kleinoodi Nxele & Plisko, 2017, K. nietvoorbiji Nxele & Plisko, 2017, K. nieuwoudtvillensis Nxele & Plisko, 2017, K. occidualis (Plisko, 1998), K. pearsonianus (Pickford, 1975), K. phumlani Nxele & Plisko, 2017, K. sophieae (Plisko, 2002)). Cryptic diversity is evident in K. occidualis with genetic divergence greater than 12% amongst populations. Kazimierzus franciscus and K. ljungstroemi (Pickford, 1975) have a low genetic variability suggesting close relatedness or probably conspecificity. A group of specimens from Clanwilliam are morphologically identical to K. sophieae, but are genetically distinct and may belong to undescribed species. This study demonstrates the importance of integrative taxonomy in earthworms in order to present reliable taxonomic and biogeographic data.

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