Experimental hybridization of voles of the genus Microtus s.l. M. socialis with species of the group arvalis (Mammalia, Rodentia)

Kovalskaya, Yu. M.; Savinetskaya, L. E.; Аксенова, Т Г

doi:10.1134/s1062359014060065

Cited by 8 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hybridization between M. socialis and M. rossiaemeridionalis Ognev, 1924testifies it (Kovalskaya, 2000Kovalskaya et al, 2011). That result proved probability of hybridization between the species with different sperm morphology.…”

Section: Discussionmentioning

confidence: 71%

The spermatozoa structure peculiarities of the subgenus Sumeriomys (Rodentia, Arvicolinae, Microtus)

Zorenko¹,

Golenishchev²

2015

Rus.J.Theriol.

View full text Add to dashboard Cite

ABSTRACT. Owing to distinct differences in size and shape in different taxa, spermatozoa can be of a high diagnostic value. The functional and evolutionary nature of such diversity is poorly understood. The purpose of the study was to summarize the data on the differences in sperm design and linear parameters between the subgenera Sumeriomys and Microtus (the genus Microtus) and to carry out the same comparison between the "socialis" and "guentheri" groups of species within the subgenus Sumeriomys. We obtained the data on shape and size of spermatozoa in seven nominal forms of the subgenus Sumeriomys. The species of the subgenus Sumeriomys are quite similar in sperm design, which distinctly differs from that in the representatives of the subgenus Microtus. The spermatozoa of the Sumeriomys species also differ from those of the Microtus representatives in some linear measurements and quantitative indices. These data confirm the taxonomic distinctness of the social voles as an independent subgenus Sumeriomys. Within the subgenus Sumeriomys some essential differences were revealed in sperm dimensions. The largest spermatozoa are observed in the species of the "guentheri" group, especially in M. guentheri (a head length 7.60 µκ). In M. hartingi they are slightly smaller in size (in two subspecies correspondingly 6.96 and 7.25 mk). In three nominal forms of the "socialis" group the spermatozoa are smaller (a head length 7.01-7.21 µκ), than in the "guentheri" group. The ratio of head length to its width in M. guentheri and M. hartingi is respectively 1.5 and 1.46, while in the "socialis" group, 1.42-1.47. In voles of the subgenus Microtus it is 1.8-2.4. The length of the medium part of spermatozoon's tail is the most variable character. The ratio of the sperm tail medium part length to head length in Microtus is higher than 2.8 (2.8-3.2), but in Sumeriomys it is lower than 2.8 (2.4-2.7). Особенности строения сперматозоидов у общественных полевок подрода Sumeriomys (Rodentia, Arvicolinae, Microtus) Т.А. Зоренко, Ф.Н. Голенищев РЕЗЮМЕ. Сперматозоиды у представителей разных таксонов отличаются по форме и размерам и, поэтому, могут иметь большую диагностическую ценность. Причины и пути возникновения этого разнообразия не ясны. Цель работы -сравнить между собой морфологию и линейные размеры сперматозоидов у видов полевок подродов Sumeriomys и Microtus (род Microtus), а также сравнить в пределах подрода Sumeriomys две группы "socialis" и "guentheri". Были получены данные по форме и размерам сперматозоидов у пяти номинальных форм подрода Sumeriomys. Форма сперма-тозоида сходна у всех изученных видов подрода Sumeriomys, но хорошо отличается от таковой полевок подрода Microtus. Между сперматозоидами представителей этих подродов также отмечены различия по линейным показателям и количественным индексам. Все это соответствует выделению общественных полевок в самостоятельный подрод Sumeriomys. Основные отличия были выявлены в размерах сперматозоидов. Наиболее крупные сперматозоиды обнаружены у видов группы "guentheri", в особеннос...

show abstract

Section: Discussionmentioning

confidence: 71%

The spermatozoa structure peculiarities of the subgenus Sumeriomys (Rodentia, Arvicolinae, Microtus)

Zorenko¹,

Golenishchev²

2015

Rus.J.Theriol.

View full text Add to dashboard Cite

show abstract

“…The experimental hybridization method has been successfully applied to refine unclear taxonomic affiliation of various forms [ 112 , 113 ]. It provides important information about the degree of divergence of closely related species and allows the mechanisms of reproductive isolation to be studied.…”

Section: Cryptic Speciation In N Leucodonmentioning

confidence: 99%

Exceptional Chromosomal Evolution and Cryptic Speciation of Blind Mole Rats Nannospalax leucodon (Spalacinae, Rodentia) from South-Eastern Europe

Savić

Ćirović

Bugarski-Stanojević

2017

Genes

View full text Add to dashboard Cite

Mole rats are exclusively subterranean and highly specialized rodents. Their long lifespans, remarkable anti-cancer mechanisms, and various distinctive adaptive features make them a useful research model. Moreover, opposing convergence of morphological traits, they have developed extremely high karyotype variability. Thus, 74 chromosomal forms have been described so far and new ones are being revealed continuously. These evolved during the process of rapid radiation and occur in different biogeographical regions. During research into their reproductive biology we have already provided substantial evidence for species-level separation of these taxa. Here, we review diverse chromosomal forms of the lesser blind mole rat, Mediterranean Nannospalax leucodon, distributed in South-eastern Europe, their karyotype records, biogeography, origin, and phylogeny from our extensive research. In the light of new data from molecular genetic studies, we question some former valuations and propose a cryptospecies rank for seven reproductively isolated chromosomal forms with sympatric and parapatric distribution and clear ecogeographical discrepances in their habitats, as well as new experimental and theoretical methods for understanding the courses of speciation of these unique fossorial mammals.

show abstract

“…; Kovalskaya et al . ). It also provides important information about the degree of divergence of closely related species and allows the mechanisms of reproductive isolation to be studied.…”

Section: Introductionmentioning

confidence: 97%

Cryptic speciation in the narrow‐headed vole Lasiopodomys (Stenocranius) gregalis (Rodentia: Cricetidae)

et al. 2016

View full text Add to dashboard Cite

Petrova T. V., Tesakov A. S., Kowalskaya Y. M., Abramson N. I. (2016). Cryptic speciation in the narrow-headed vole, Lasiopodomys (Stenocranius) gregalis, (Rodentia: Cricetidae). -Zoologica Scripta, 00, 000-000. Recent study on Lasiopodomys (Stenocranius) gregalis has revealed four clear mitochondrial lineages with differences exceeding the species level. The most divergent is the clade from south-eastern Transbaikalia. Multilocus (six nuclear genes), morphological (dental characters of m1 and M3) and behavioural (breeding experiments) analyses were conducted to test the hypothesis that L. gregalis is a complex of two cryptic species. All of the applied methods distinguish the independent status of voles from south-eastern Transbaikalia. This clade occupies a portion of the distribution range of the currently valid subspecies L. g. raddei including its terra typica. According to the results of cyt b analysis, the lectotype of L. g. raddei belongs to the Transbaikal clade. We re-establish the species status for the taxon Lasiopodomys raddei including populations from south-eastern Transbaikalia, as a cryptic species of the narrow-headed vole complex.

show abstract

Experimental hybridization of voles of the genus Microtus s.l. M. socialis with species of the group arvalis (Mammalia, Rodentia)

Cited by 8 publications

References 4 publications

The spermatozoa structure peculiarities of the subgenus Sumeriomys (Rodentia, Arvicolinae, Microtus)

The spermatozoa structure peculiarities of the subgenus Sumeriomys (Rodentia, Arvicolinae, Microtus)

Exceptional Chromosomal Evolution and Cryptic Speciation of Blind Mole Rats Nannospalax leucodon (Spalacinae, Rodentia) from South-Eastern Europe

Cryptic speciation in the narrow‐headed vole Lasiopodomys (Stenocranius) gregalis (Rodentia: Cricetidae)

Contact Info

Product

Resources

About