2019
From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish
JIRSOVÁ, Dagmar, Jan STEFKA, Radim BLAŽEK, J.O. MALALA, David E. LOTULIAKOU et. al.Základní údaje
Originální název
From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish
Autoři
JIRSOVÁ, Dagmar (203 Česká republika), Jan STEFKA (203 Česká republika), Radim BLAŽEK (203 Česká republika, garant, domácí), J.O. MALALA (404 Keňa), David E. LOTULIAKOU (404 Keňa), Zuheir N. MAHMOUD (729 Súdán) a Miloslav JIRKU (203 Česká republika)
Vydání
Scientific reports, LONDON, NATURE PUBLISHING GROUP, 2019, 2045-2322
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10700 1.7 Other natural sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.998
Kód RIV
RIV/00216224:14310/19:00108178
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000493439600046
Klíčová slova anglicky
SYNODONTIS SILURIFORMES; MOCHOKIDAE CHILOGLANIS; PHYLOGENY; PHYLOGEOGRAPHY; TELEOSTEI; INFERENCE; SOFTWARE; REVEALS; COMPLEX
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 28. 3. 2020 18:10, Mgr. Marie Šípková, DiS.
Anotace
V originále
Cryptic genetic diversity and erroneous morphological species determination represent frequent problems in biodiversity research. Here, examination of 138 specimens of Synodontis (Mochokidae, Siluriformes) from the Nile River and Lake Turkana revealed the presence of both S. schall-like and S. frontosus-like morphotypes, with a phenotypic gradient between them. We concluded phylogenetic and population genetic analyses based on two mitochondrial and one nuclear marker including 131 coxI (565 bp), 96 cytb (973 bp) and 19 RAG2 (896 bp) sequences from the Nile-Turkana population, plus additional GenBank data of Synodontis spp. Whilst nuclear data were inconclusive, mitochondrial sequences suggested that both morphotypes and intermediate forms are conspecific. The results imply probable synonymy of S. frontosus with S. schall. Conversely, a strong biogeographical signal was revealed among widely distributed and supposedly conspecific S. schall-like catfish of the Nilo-Sudanian ichthyological province. Synodontis schall sensu stricto (=Eastern clade), as defined by type locality in the Nile, is apparently restricted to the eastern part of the Nilo-Sudanian ichthyological province (e.g. Nile, Turkana, Chad). Synodontis schall Western clade (Senegambia, Niger, Chad) most probably represents a cryptic taxon, unrecognized thus far due to the absence of distinctive morphological differences.
Návaznosti
GBP505/12/G112, projekt VaV |
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LM2015085, projekt VaV |
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