16s rRNA gene polymorphism supports cryptic speciation within the Lesser Blind Mole Rat Nannospalax leucodon Superspecies (Rodentia: Spalacidae)
2019
Preuzimanje 🢃
Autori:
Bugarski-Stanojević, VanjaStamenković, Gorana
Ćirović, Duško
Ćirić, Danica
Stojković, Oliver
Veličković, Jelena
Kataranovski, Dragan
Savić, Ivo
Ostala autorstva
Vasiljević, BrankaPatenković, Aleksandra
Nikolić, Nađa
Tip dokumenta:
Konferencijski prilog (Objavljena verzija)
,
© 2019 by the Serbian Genetic Society
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Among 26 genera of Palaearctic mammals, the genus Nannospalax has the highest karyotype
variability with 74 chromosomal forms (CFs). Taxonomic effects i.e. implications to phylogeny
and speciation process of such chromosomal variety are still lacking, especially among 25
reported CFs of South-European N. leucodon superspecies. Many cryptic species are under
serious threat of complete disappearance, with population declines in Europe. As genetic
discrepancies for the majority of them are missing, we analyzed nucleotide sequence
polymorphism of the mitochondrial 16S rRNA gene between eight N. leucodon CFs and also
add for the first time nucleotide sequence data for three CFs: monticola, montanoserbicus
and syrmiensis. Further, including 40-57 years old teeth we evaluate the usefulness of the
archived samples, e.g. from museums and other old collections as starting material for
phylogenetic analysis. The topology of the Bayesian Inference tree is in agreement with the
traditional taxonomic separation of recent blind mole rats. Among the three superspecies, the
genetic diversity was lowest in N. ehrenbergi (0.004-0.031), highest in N. xanthodon (0.009-
0.063) and intermediate in N. leucodon (0.008-0.055). The comparable scale of evolutionary
divergence among N. leucodon CFs and among species from the genus Spalax supports our
previous proposal that seven reproductively isolated CFs should be considered to be cryptic
species and thus protected from extinction in their natural habitat.
Finansiranje / projekti:
- Evolucija u heterogenim sredinama: mehanizmi adaptacija, biomonitoring i konzervacija biodiverziteta (RS-MESTD-Basic Research (BR or ON)-173025)
U:
- Vasiljević B, Patenković A, Nikolić N, editors. 6th Congress of the Serbian genetic society: Book of abstracts; 2019 Oct 13-17; Vrnjačka Banja, Serbia. Belgrade: Serbian Genetic Society; 2019. p. 153.