First cytogenetic analysis of lesser gymnures (Mammalia, Galericidae, Hylomys) from Vietnam

Svetlana V. Pavlova, Larisa S. Biltueva, Svetlana A. Romanenko, Natalya A. Lemskaya, Anton V. Shchinov, Alexei V. Abramov, Viatcheslav V. Rozhnov

Результат исследования: Научные публикации в периодических изданияхстатья

2 Цитирования (Scopus)

Аннотация

Gymnures are an ancient group of small insectivorous mammals and are characterized by a controversial taxonomic status and the lack of a description of karyotypes for certain species. In this study, conventional cytogenetic techniques (Giemsa, CBG- and GTG-banding, Ag-NOR), CMA3-DAPI staining, and fluorescent in situ hybridization (FISH) with telomeric DNA probes were used to examine for the first time the karyotypes of lesser gymnures of group Hylomys suillus Müller, 1840 from northern and southern Vietnam. All studied specimens had karyotypes with 2n=48, NFa=64. C-positive heterochromatic blocks existed in centromeric regions of 7 bi-armed autosomes and the submetacentric X chromosome. The Y chromosome is a C-positive and dot-like. The nucleolus organizer regions resided terminally on the short arms of 2 small bi-armed pairs. Positive signals at the telomeres of all chromosomes were revealed by FISH. CMA3-positive blocks were localized on the telomeric and pericentric regions of most bi-armed and acrocentric chromosomes. Despite the large genetic distances between Hylomys Müller, 1840, lesser gymnures from H. suillus-group from northern and southern Vietnam have similar karyotypic characteristics.

Язык оригиналаанглийский
Страницы (с-по)361-372
Число страниц12
ЖурналComparative Cytogenetics
Том12
Номер выпуска3
DOI
СостояниеОпубликовано - 23 авг 2018

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  • Цитировать

    Pavlova, S. V., Biltueva, L. S., Romanenko, S. A., Lemskaya, N. A., Shchinov, A. V., Abramov, A. V., & Rozhnov, V. V. (2018). First cytogenetic analysis of lesser gymnures (Mammalia, Galericidae, Hylomys) from Vietnam. Comparative Cytogenetics, 12(3), 361-372. https://doi.org/10.3897/CompCytogen.v12i3.27207