Intraspecific morphological and genetic variability in Radix Balthica (Linnaeus 1758) (Gastropoda : Basommatophora: Lymnaeidae) with mophological comparison to other european radix species. / Schniebs, Katrin; Glöer, Peter; Vinarski, Maxim V.; Hundsdoerfer, Anna K.
In: Journal of Conchology, Vol. 40, No. 6, 01.12.2011, p. 657-678.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Intraspecific morphological and genetic variability in Radix Balthica (Linnaeus 1758) (Gastropoda
T2 - Basommatophora: Lymnaeidae) with mophological comparison to other european radix species
AU - Schniebs, Katrin
AU - Glöer, Peter
AU - Vinarski, Maxim V.
AU - Hundsdoerfer, Anna K.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - Radix balthica is a morphologically very variable species that is often very difficult to determine on the basis of the shell characters. Since DNA-taxonomy is still expensive and requires much more time than anatomical determination, and the methodology is hardly available for most colleagues that work faunistically, this work aims to broaden knowledge of the intraspecific variability in the more important systematic characters used for determination o/Radix balthica. To find reliable distinguishing characters from other Radix-species, an integrative approach was sought and data from three different sources were acquired for analysis. Molecular sequence data of the gene fragments ITS-2 and/or cyt-b was obtained for 58 individuals in order to study the species identity of Radix balthica (Linnaeus 1758). Of the subsample of 24 individuals for which both gene fragments were available, the variability of several characters that are commonly used for determination was documented. These include shell morphology, mantle pigmentation, shape and position of the bursa copulatrix, length and position of the bursa duct, and length ratio of praeputium to penis sheath. Morphological distinguishing diameters from R. auricularia, R. labiata, R. lagotis and R. ampla are discussed and summarised in a table. Analysis of the network ofhaplotypes (cyt-b) shows that there is no distinct correlation to the geographic distribution pattern.
AB - Radix balthica is a morphologically very variable species that is often very difficult to determine on the basis of the shell characters. Since DNA-taxonomy is still expensive and requires much more time than anatomical determination, and the methodology is hardly available for most colleagues that work faunistically, this work aims to broaden knowledge of the intraspecific variability in the more important systematic characters used for determination o/Radix balthica. To find reliable distinguishing characters from other Radix-species, an integrative approach was sought and data from three different sources were acquired for analysis. Molecular sequence data of the gene fragments ITS-2 and/or cyt-b was obtained for 58 individuals in order to study the species identity of Radix balthica (Linnaeus 1758). Of the subsample of 24 individuals for which both gene fragments were available, the variability of several characters that are commonly used for determination was documented. These include shell morphology, mantle pigmentation, shape and position of the bursa copulatrix, length and position of the bursa duct, and length ratio of praeputium to penis sheath. Morphological distinguishing diameters from R. auricularia, R. labiata, R. lagotis and R. ampla are discussed and summarised in a table. Analysis of the network ofhaplotypes (cyt-b) shows that there is no distinct correlation to the geographic distribution pattern.
KW - Molecular genetics
KW - Morphology
KW - R. ampla
KW - R. auricularia
KW - R. labiata
KW - R. lagotis
KW - Radix balthica
KW - Variation
UR - http://www.scopus.com/inward/record.url?scp=84855678442&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:84855678442
VL - 40
SP - 657
EP - 678
JO - Journal of Conchology
JF - Journal of Conchology
SN - 0022-0019
IS - 6
ER -
ID: 36041603