J 2022

Unravelling morphological overlap of the rock-dwelling snails Pyramidula saxatilis (Hartmann, 1842) and P. pusilla (Vallot, 1801)

HORSÁK, Michal, Eva LÍZNAROVÁ, Radovan COUFAL, Jeffrey Clark NEKOLA, Veronika HORSÁKOVÁ et. al.

Základní údaje

Originální název

Unravelling morphological overlap of the rock-dwelling snails Pyramidula saxatilis (Hartmann, 1842) and P. pusilla (Vallot, 1801)

Autoři

HORSÁK, Michal (203 Česká republika, garant, domácí), Eva LÍZNAROVÁ (203 Česká republika, domácí), Radovan COUFAL (203 Česká republika, domácí), Jeffrey Clark NEKOLA (840 Spojené státy, domácí) a Veronika HORSÁKOVÁ (203 Česká republika, domácí)

Vydání

Journal of Molluscan Studies, Oxford University Press, 2022, 0260-1230

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10617 Marine biology, freshwater biology, limnology

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 1.200

Kód RIV

RIV/00216224:14310/22:00129317

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000895431300001

Klíčová slova anglicky

SEQUENCE ALIGNMENT; GASTROPODA; PULMONATA

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 11. 7. 2023 10:00, Mgr. Marie Šípková, DiS.

Anotace

V originále

Pyramidula saxatilis and P. pusilla are two Central European rock-dwelling snail species that frequently co-occur and show substantial overlap in overall shell morphology. The two species can be separated from each other by differences in mitochondrial and nuclear DNA (mtDNA and nDNA) sequences. Recent studies have not shown consistent differences between these species in shell shape but have suggested possible species-specific features in shell microstructure. We investigated this issue by studying variation in the microsculpture of the upper shell surface (based on five shells per population from a total of nine populations for each species) and by analysing the geometric morphometrics of shell shape (based on 51 individuals and 12 populations of P. saxatilis and 54 individuals and 14 populations of P. pusilla), with species identifications based on mtDNA and nDNA markers. While geometric morphometrics and canonical variance analysis did reveal some statistical differences in overall shell shape, these differences were too subtle to be consistently detected by the eye. However, the density and development of growth ridges on the upper shell surface of the two species were found to be statistically different, with P. saxatilis having denser and very regular ridges. As a final verification of the utility of shell miscrosculpture, we were able to separate these two species even in two mixed populations with highly overlapping shell phenotypes, the shell-based identifications being confirmed by cytochrome c oxidase subunit I sequence data for all of the collected individuals. We therefore recommend using shell microsculpture to distinguish these two species.

Návaznosti

GA20-18827S, projekt VaV
Název: Diverzifikace boreálních suchozemských plžů podmíněná izolací v prostoru a čase
Investor: Grantová agentura ČR, Boreal land snail diversification promoted by isolation through space and time