scholarly journals Evidence of hidden diversity and taxonomic conflicts in five stream fishes from the Eastern Zimbabwe Highlands freshwater ecoregion

2020 ◽  
Author(s):  
Albert Chakona ◽  
Wilbert Kadye ◽  
Taurai Bere ◽  
Daniel Mazungula ◽  
Emmanuel Vreven
Keyword(s):  
Sequence Divergence ◽  
Taxonomic Diversity ◽  
Stream Fishes ◽  
Species Delineation ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Incomplete Knowledge ◽  
Distribution Ranges ◽  
Mitochondrial Cytochrome Oxidase ◽  
Effective Conservation

Stream fishes of the Eastern Afromontane region are among the least studied vertebrates in this region, despite the potential for harbouring cryptic diversity. The present study examined mitochondrial cytochrome oxidase subunit I (COI) sequence divergence in 153 specimens of stream fishes belonging to four genera and three families, [(<i>Amphilius</i> and <i>Zaireichthys</i> (Amphiliidae); <i>Chiloglanis</i> (Mochokidae); and <i>Hippopotamyrus</i> (Mormyridae)], in the Eastern Zimbabwe Highlands (EZH) freshwater ecoregion to explore the extent to which the current taxonomy conceals the ichthyofaunal diversity in the region. The General Mixed Yule Coalescent (GMYC) species delineation method identified 14 clusters within five currently recognised ‘species’ from the EZH ecoregion. Only one of these clusters represents a named species, while 13 of them represent candidate or undescribed species. Our results revealed that effective conservation of this region’s unique biota is limited by the incomplete knowledge of taxonomic diversity and inaccurate mapping of species distribution ranges.

scholarly journals Evidence of hidden diversity and taxonomic conflicts in five stream fishes from the Eastern Zimbabwe Highlands freshwater ecoregion

2020 ◽  
Author(s):  
Albert Chakona ◽  
Wilbert Kadye ◽  
Taurai Bere ◽  
Daniel Mazungula ◽  
Emmanuel Vreven
Keyword(s):  
Sequence Divergence ◽  
Taxonomic Diversity ◽  
Stream Fishes ◽  
Species Delineation ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Incomplete Knowledge ◽  
Distribution Ranges ◽  
Mitochondrial Cytochrome Oxidase ◽  
Effective Conservation

Stream fishes of the Eastern Afromontane region are among the least studied vertebrates in this region, despite the potential for harbouring cryptic diversity. The present study examined mitochondrial cytochrome oxidase subunit I (COI) sequence divergence in 153 specimens of stream fishes belonging to four genera and three families, [(<i>Amphilius</i> and <i>Zaireichthys</i> (Amphiliidae); <i>Chiloglanis</i> (Mochokidae); and <i>Hippopotamyrus</i> (Mormyridae)], in the Eastern Zimbabwe Highlands (EZH) freshwater ecoregion to explore the extent to which the current taxonomy conceals the ichthyofaunal diversity in the region. The General Mixed Yule Coalescent (GMYC) species delineation method identified 14 clusters within five currently recognised ‘species’ from the EZH ecoregion. Only one of these clusters represents a named species, while 13 of them represent candidate or undescribed species. Our results revealed that effective conservation of this region’s unique biota is limited by the incomplete knowledge of taxonomic diversity and inaccurate mapping of species distribution ranges.

scholarly journals Evidence of hidden diversity and taxonomic conflicts in five stream fishes from the Eastern Zimbabwe Highlands freshwater ecoregion

ZooKeys ◽  
2018 ◽  
Vol 768 ◽  
pp. 69-95 ◽  
Author(s):  
Albert Chakona ◽  
Wilbert T. Kadye ◽  
Taurai Bere ◽  
Daniel N. Mazungula ◽  
Emmanuel Vreven
Keyword(s):  
Sequence Divergence ◽  
Taxonomic Diversity ◽  
Stream Fishes ◽  
Species Delineation ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Incomplete Knowledge ◽  
Distribution Ranges ◽  
Mitochondrial Cytochrome Oxidase ◽  
Effective Conservation

Stream fishes of the Eastern Afromontane region are among the least studied vertebrates in this region, despite the potential for harbouring cryptic diversity. The present study examined mitochondrial cytochrome oxidase subunit I (COI) sequence divergence in 153 specimens of stream fishes belonging to four genera and three families, [(AmphiliusandZaireichthys(Amphiliidae);Chiloglanis(Mochokidae); andHippopotamyrus(Mormyridae)], in the Eastern Zimbabwe Highlands (EZH) freshwater ecoregion to explore the extent to which the current taxonomy conceals the ichthyofaunal diversity in the region. The General Mixed Yule Coalescent (GMYC) species delineation method identified 14 clusters within five currently recognised ‘species’ from the EZH ecoregion. Only one of these clusters represents a named species, while 13 of them represent candidate or undescribed species. Our results revealed that effective conservation of this region’s unique biota is limited by the incomplete knowledge of taxonomic diversity and inaccurate mapping of species distribution ranges.

First rearing record and DNA sequence of Chromatomyia aizoon (Hering, 1932) (Diptera: Agromyzidae) associated with Saxifraga paniculata Miller from the Czech Republic

2020 ◽  
Vol 69 (3) ◽  
pp. 283-288
Author(s):  
Miloš Černý ◽  
Jiří Kocián ◽  
Jan Ševčík
Keyword(s):  
Czech Republic ◽  
Cytochrome Oxidase ◽  
Dna Sequence ◽  
Partial Sequence ◽  
Mitochondrial Cytochrome ◽  
Cytochrome Oxidase Subunit ◽  
Cytochrome Oxidase Subunit I ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
The Czech Republic ◽  
Mitochondrial Cytochrome Oxidase

Abstract A male of Chromatomyia aizoon (Hering, 1932) (Diptera: Agromyzidae) was reared from a leaf mine at Saxifraga paniculata collected in Štramberk (Northern Moravia, Czech Republic). Partial sequence of the mitochondrial cytochrome oxidase subunit I (COI barcode region, 658 bp) is also provided.

Morphology and molecular phylogeny of ornamental freshwater prawns of the genus Macrobrachium (Decapoda, Caridea, Palaemonidae) from China with the description of a new species

Crustaceana ◽  
2021 ◽  
Vol 94 (10) ◽  
pp. 1201-1220
Author(s):  
Qinghua Chen ◽  
Wenjian Chen ◽  
Yuanwei Hu ◽  
Ka Yan Ma ◽  
Zhaoliang Guo
Keyword(s):  
New Species ◽  
Colour Pattern ◽  
Molecular Evidence ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Closely Related Species ◽  
Distribution Maps ◽  
Mitochondrial Cytochrome Oxidase ◽  
A New Species

Abstract This study dealt with three species of ornamental palaemonid freshwater prawns of the genus Macrobrachium, based on morphological and molecular analysis. Macrobrachium pentazona He, Gao & Guo, 2009; M. laevis Zheng, Chen & Guo, 2019; and M. bilineare sp. nov. are distinguishable from closely related species by segmental ratios, spination of the second pereiopods and the slender scaphocerite. Macrobrachium bilineare sp. nov. can easily be recognized in the field by its bright colour pattern. Molecular evidence of mitochondrial cytochrome oxidase subunit I (COI), also supports the characterization of this new species, raising the total number of Macrobrachium spp. known from China to 41. Detailed description, illustrations, colour photographs, habitat information, distribution maps and features of conservation significance are also briefly discussed.

scholarly journals Epimeria schiaparelli sp. nov., an amphipod crustacean (family Epimeriidae) from the Ross Sea, Antarctica, with molecular characterisation of the species complex  

Zootaxa ◽  
2007 ◽  
Vol 1402 (1) ◽  
pp. 23 ◽  
Author(s):  
ANNE-NINA LÖRZ ◽  
ELIZABETH W. MAAS ◽  
KATRIN LINSE ◽  
GRAHAM D. FENWICK
Keyword(s):  
Species Complex ◽  
Ross Sea ◽  
Similar Species ◽  
Molecular Characterisation ◽  
Cytochrome Oxidase Subunit ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Antarctic Species ◽  
Amphipod Crustacean ◽  
Colour Patterns ◽  
Mitochondrial Cytochrome Oxidase

Epimeria schiaparelli sp. nov. from the Ross Sea, Antarctica, is described in detail. The new species occurs on the shelf in 130–350 m depth. Epimeria schiaparelli can be distinguished from the most similar species, E. similis Chevreux, 1912 and E. macrodonta Walker, 1906 by a relatively short rostrum and a short second pereonite amongst other characters. Two distinct colour patterns are reported. Partial gene sequences of the mitochondrial cytochrome oxidase subunit I (COI) from 11 specimens of E. schiaparelli confirm that this species is new to science and closely related to E. similis, E. macrodonta and E. reoproi. The recent and historical separation of this Antarctic species is discussed. The syntypes of E. macrodonta consist of two species, so a lectotype is here designated.

Redefinition of Cornexcisia Fan & Kano, 2000 (Diptera: Sarcophagidae), with the first description of the female of Sarcophaga kurahashii (Shinonaga & Tumrasvin, 1979)

Zootaxa ◽  
2019 ◽  
Vol 4668 (3) ◽  
pp. 410-420
Author(s):  
CHAO WANG ◽  
YUNYUN GAO ◽  
THOMAS PAPE ◽  
DONG ZHANG
Keyword(s):  
Cytochrome Oxidase ◽  
Coi Gene ◽  
Mitochondrial Cytochrome ◽  
Gene Sequences ◽  
Cytochrome Oxidase Subunit ◽  
Cytochrome Oxidase Subunit I ◽  
Mitochondrial Cytochrome Oxidase Subunit ◽  
Senior Synonym ◽  
First Time ◽  
Mitochondrial Cytochrome Oxidase

Sarcophaga Meigen, 1826 is proposed as a senior synonym of Cornexcisia Fan & Kano, 2000, syn. nov. and Fanzideia Xue, Verves & Du, 2011, syn. nov. Cornexcisia Fan & Kano, 2000, stat. rev. is given status as a subgenus and is considered a senior synonym of Fanzideia Xue, Verves & Du, 2011, syn. nov. at the subgeneric level. Cornexcisia is argued to contain S. (Cornexcisia) longicornuta (Fan & Kano, 2000), comb. nov., S. (C.) cygnocerca (Xue, Verves & Du, 2011), comb. nov., S. (C.) kurahashii (Shinonaga & Tumrasvin, 1979), subgen. comb. nov. (from Phallosphaera Rohdendorf) and S. (C.) suthep Pape & Bänziger, 2003, subgen. comb. nov. (from Rosellea Rohdendorf). Sarcophaga (C.) kurahashii is newly recorded from China (Yunnan), the male is redescribed and the female is described for the first time, supported by photographs, illustrations and mitochondrial cytochrome oxidase subunit I (COI) gene sequences. Species of Cornexcisia share an exceptionally long postpedicel in the female and the following apomorphic distiphallic appendages in the male: juxta ventro-proximally with an apically divided arm with cuticular pile, and lateral styli bifurcated from the base with each branch elongate, gently curved and slightly expanded apically. A key to the species of Cornexcisia is provided. 

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