| Darevskia raddei nairensis DAREVSKI, 1967 Lacerta saxicola nairensis DAREVSKY, 1967 Lacerta raddei nairensis UZZELL & DAREVSKY, 1973 Lacerta nairensis DAREVSKY, 1992 Archaeolacerta (Caucasilacerta) nairensis SINDACO et al., 2000 Darevskia (raddei) nairensis ARNOLD et al., 2007 Lacerta (Darevskia) nairensis SINDACO & JEREMČENKO, 2008 Darevskia nairensis ARAKELYAN et al., 2011 |
Darevsky, I.S. (1967) - Description Darevskia alpina. - In: “Rock lizards of the Caucasus: Systematics, ecology and phylogenesis of the polymorphic groups of Caucasian rock lizards of the the subgenus Archaeolacerta”: Indian Natural Sciences Documentation Center, New Delhi. 276 pp.  Fu, J. & Darevsky, I.S. & MacCulloch, R.D. & Kupriyanova, L.A. & Roitberg, E.S. & Sokolova, T.M. & Murphy, R.W. (1995) - Genetic and morphological differentiation among Caucasian rock lizards of the Lacerta caucasica complex. - Russian Journal of Herpetology, Moscow, 2 (1): 36-42.  × The genetic diversity of 34 loci was surveyed from among five populations of the supposed conspecific taxa Lacerta c. caucasica, L. c. alpina, and L. c. daghestanica. Twelve loci exhibited variation. Fixed or nearly fixed allelic differences between L. c. caucasica and L. c. daghestanica were found at two loci, mannose-6-phosphate isomerase-A and creatine kinase-C. These two taxa differed from L. c. alpina at eight loci. Nei`s (1978) genetic distance values among populations of L. c. daghestanica ranged from 0.000 - 0.029, between L. c. caucasica and L. c. daghestanica from 0.076 - 0.087 and between L. c. alpina and the other taxa from 0.472 - 0.501. Fixed allelic differences and consistent morphological character states support the recognition of these three taxa as separate species. Therefore, we recommend use of the names L. alpina, L. caucasica, and L. daghestanica for these taxa. Petrosyan, R. & Arakelyan, M. (2013) - Comparative analysis of two close related forms of lizard Darevskia “raddei” and D. “nairensis”. - In: Žagar, A. (ed.): Abstracts of the 8th International Symposium on the Lacertids of the Mediterranean Basin, 03 - 06 June 2013, Koper, Slovenia: 45. × In order to decide a disputed taxonomic rank of two close forms of rock lizards of genus Darevskia we compared form “nairensis” from the city of Yerevan in the gorge of Razdan river (1006 m above sea level) and “raddei” from a vicinity of the Geghard monastery in the gorge of Azat river (1940 m) approximately at distance of 24-25 km from each other. Morphological researches have shown their similarity: “nairensis” and “raddei” significantly differ only by number of dorsal scales (P<0.01 for both sexes) and scales between the masseteric shield and the supratemporal (P<0.01 for males and P<0.001 for females), where the number of scales of “raddei” exceed that of “nairensis”. Despite the close morphological similarity, earlier was suggested that two close forms of lizards may be reproductive isolated. Our researches have shown that terms of breeding of males and females of “nairensis” were on 7-10 days earlier than “raddei”, however this may result of different climate conditions in concerning with elevation. Our parasitological observation of blood smears have shown that two forms of lizards contain different forms of blood parasites, where “nairensis” were infected mostly by parasites identified according to their morphology as specimens of genus Karyolysus, while “raddei” were mostly infected by parasites of genus Hepatazoon, which also may result of different habitats rather than species rank differences. Freitas, S. & Rocha, S. & Campos, J. & Ahmadzadeh, F. & Corti, C. & Sillero, N. & Ilgaz, C. & Kumlutaş, Y. & Arakelyan, M. & Harris, D.J. & Carretero, M.A. (2016) - Parthenogenesis through the ice ages: A biogeographic analysis of Caucasian rock lizards (genus Darevskia). - Molecular Phylogenetics and Evolution 102: 117–127. × Darevskia rock lizards include both sexual and parthenogenetic species, mostly distributed in the heterogeneous and ecologically diverse Caucasus. The parthenogenetic species originated via directional hybridogenesis, with only some of the sexual species known to serve as parentals. However, it remains unclear when and where these events happened and how many parental lineages were involved. A multilocus phylogeographic analysis was performed on the parthenogens D. unisexualis, D. bendimahiensis and D. uzzeli, and their putative maternal species D. raddei. Results show the parthenogenetic species all have relatively recent origins, approximately 200–70 kyr ago, and at least three hybridization events were involved in their formation. Ecological niche models identify the region where hybridization events leading to the formation of D. unisexualis took place, namely in the northeast of the current distribution. Models also suggest that the sexual D. raddei might have undergone a habitat shift between the Last Interglacial and the Last Glacial Maximum. Petrosyan, V.G. & Osipov, F.A. & Bobrov, V.V. & Dergunova, N.N. & Kropachev, I.I. & Danielyan, F.D. & Arakelyan, M.S. (2020) - New records and geographic distribution of the sympatric zones of unisexual and bisexual rock lizards of the genus Darevskia in Armenia and adjacent territories. - Biodiversity Data Journal 8: e56030 (https://doi.org/10.3897/BDJ.8.e56030)  × Caucasian rock lizards of the genus Darevskia are unique taxa, including both bisexual and parthenogenetic species. The parthenogenetic species have originated as a result of natural hybridisation between females and males of different bisexual species. The species involved in interspecific hybridisation are called parental. However, sympatric zones (SZ) of unisexual and bisexual rock lizards of the Caucasus are still poorly studied, although they are very important for understanding the role of hybrid individuals of different origin in reticulate evolution. This paper presents the location of the SZs of parthenogenetic and their parental bisexual rock lizards of the genus Darevskia in Armenia and adjacent territories of Georgia and Nagorno-Karabakh. We summarised the locations of the SZs identified from 1957 to the present, based on our field survey data gathered in 2018-2019 and records from publications and museum collections. This dataset includes 39 SZs of three types: SZ of parental bisexual species, SZ of parental species with unisexual species and SZ of the parthenogenetic species. For each zone, species composition, geographical and altitudinal distribution are presented. New records expand our knowledge of the geographical and altitudinal distribution of SZs in these species and provide additional data for understanding the mechanisms of reticulate evolution and hybridogeneous speciation in the past, present and future.
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