Eighteen specimens belonging to seven species were karyotyped. Mitotic chromosome suspensions were made in the field from short-term culture of bone marrow and/or spleen after colchicine treatment in vivo as described previously
44 (link). For
U. aff. soricipes, a chromosome suspension from primary fibroblast culture was prepared following the standard technique
45 . Air-dried chromosome spreads of all the specimens were conventionally stained with 2% Giemsa for 1–2 min and sequentially subjected to differential staining.
The standard trypsin/Giemsa staining procedure was carried out for the identification of each chromosome arm by G-bands
46 (link). C-banding was performed by the classic technique
47 (link). NORs were detected by silver nitrate staining
48 (link).
A Leica DFC-295 CCD camera mounted on a
DM1000 (Leica) microscope or a Metasystems CCD (Zeiss) camera mounted on an
AxioScope 2 (Zeiss) microscope was employed to capture images using MetaSystems Ikaros ver.5.3 and
Leica Application ver.3.2 software packages, respectively.
Pavlova S.V., Lebedev V.S., Yakushov V.D., Zhu Y., Fang Y., Sun Y.H, & Sheftel B.I. (2021). High diversity of small insectivorous mammals on Qinghai–Tibet Plateau and first description of karyotype for four endemics of China. Scientific Reports, 11, 24496.