Topic
Microtus multiplex
About: Microtus multiplex is a research topic. Over the lifetime, 5 publications have been published within this topic receiving 58 citations.
Papers
TL;DR: The molecular data indicate that the distribution range of M. liechtensteini extends further to the north (Upper Styria) than has been assumed earlier and suggests that the North Tyrolean samples belong to M. bavaricus, a species thought to be extinct.
Abstract: To elucidate the phylogenetic relationships of Alpine voles comprising the Microtus multiplex complex and related species the mitochondrial control region (CR) was employed as a genetic marker. Forty specimens were analysed representing the taxa Microtus liechtensteini, Microtus multiplex, and Microtus bavaricus (samples from 11 geographic regions) as well as specimens of Microtus subterraneus, Microtus tatricus, Microtus arvalis, Microtus agrestis, Microtus oeconomus, and Chionomys nivalis. The haplotypes from Tuscany and the Swiss canton of Valais can be ascribed to M. multiplex, whereas the haplotypes isolated from the geographic samples from Croatia, Slovenia, Carinthia, Styria, East Tyrol, and South Tyrol represent M. liechtensteini. The molecular data indicate that the distribution range of M. liechtensteini extends further to the north (Upper Styria) than has been assumed earlier. The haplotypes of M. bavaricus, together with the populations from North Tyrol, form a cluster clearly separated from M. liechtensteini. This result suggests that the North Tyrolean samples belong to M. bavaricus, a species thought to be extinct. Microtus tatricus splits off at the basis of the multiplex complex. Our sequence data do not support a close relationship between M. bavaricus and M. tatricus. The phylogenetic relationships deduced from the sequence data favour a hypothesis assuming three glacial refugia, in which M. multiplex, M. liechtensteini and M. bavaricus, respectively, survived the last one or two Alpine glaciations.
45 citations
TL;DR: The M1-morphology of seven isolated populations of voles displaying a pitymyan rhombus from the Eastern Alps was compared with that of M. multiplex, M. liechtensteini, and M. tatricus as well as among each other, by using discriminant and canonical discriminant analyses.
Abstract: The M1-morphology of seven isolated populations of voles displaying a pitymyan rhombus from the Eastern Alps (including the probably extinct Microtus bavaricus) was compared with that of M. multiplex, M. liechtensteini, and M. tatricus as well as among each other, by using discriminant and canonical discriminant analyses.
9 citations
TL;DR: Morphometrical analysis of the first lower molar (M1) confirmed Microtus liechtensteini (Wettstein, 1927) to be closer to M. multiplex than toM.
Abstract: Morphometrical analysis of the first lower molar (M1) confirmed Microtus liechtensteini (Wettstein, 1927) to be closer to M. multiplex than to M. subterraneus. In the terms of the inclination of the pitymyan rhombus, M. liechtensteini appeared to be more evolved than M. multiplex. Significant interpopulation variability was recorded as regards morphometrical analysis of M1 in M. liechtensteini: M. l. petrovi was larger than the nominate race M. l. liechtensteini, while populations from the sub-Mediterranean zone differed by more open anterior loop.
4 citations
TL;DR: The morphology of the first lower molar (M1) of Microtus (Terricola) multiplex was compared amongst 15 populations from the Alps and the Western populations belonging to the subspecies M. niethammeri are the most differentiated with a small or median size of the M1, a reduced development of the anterior part and a very tilted pitymyan rhombus.
Abstract: The morphology of the first lower molar (M1) of Microtus (Terricola) multiplex (Fatio, 1905) was compared amongst 15 populations from the Alps (Switzerland, Italy, France). M. multiplex orientalis from Trentino Alto Adige is close to the nominative subspecies M. multiplex multiplex from Ticino characterised by a great size, a not tilted pitymyan rhombus and an important development of the anterior part of the M1. M. multiplex druentius from Ubaye mainly differs from the nominative subspecies by a smaller tooth size. Populations from Valle d’Aosta and Piemonte show on the whole a morphology intermediate between M. m. multiplex and M. m. druentius subspecies, however, the pitymyan rhombus is more tilted and the development of the anterior part more reduced in populations from Eastern and Central Piemonte. The Western populations (from Trieves, Vercors, Royans and Chambaran) belonging to the subspecies M. m. niethammeri are the most differentiated with a small or median size of the M1, a reduced development of the anterior part and a very tilted pitymyan rhombus, particularly in the population from Chambaran. The populations from Matheysine and Gresivaudan are morphologically a link between M. m. druentius and M. m. niethammeri subspecies.
1 citations
TL;DR: According to phylogenetic analyses based on the mitochondrial cytochrome b (cytb) gene and the control region (CR), three morphologically cryptic vole species of the genus Microtus represent a well supported monophyletic group and the primary divergence occurs between M. multiplex sensu stricto and the sister species M. bavaricus.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2010 | 2 |
| 2000 | 2 |
| 1993 | 1 |