Chromosomal phylogeny of certain shrews of the genera Crocidura and Suncus(Insectivora)

Authors
Biltueva, LS Rogatcheva, MB Perelman, PL Borodin, PM Oda, SI Koyasu, K Harada, M Zima, J Graphodatsky, AS
Citation
Ls. Biltueva et al., Chromosomal phylogeny of certain shrews of the genera Crocidura and Suncus(Insectivora), J ZOOL SYST, 39(1-2), 2001, pp. 69-76
Citations number
24
Categorie Soggetti
Animal Sciences
Journal title
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
ISSN journal
09475745 → ACNP
Volume
39
Issue
1-2
Year of publication
2001
Pages
69 - 76
Database
ISI
SICI code
0947-5745(200103)39:1-2<69:CPOCSO>2.0.ZU;2-1
Abstract
High-resolution chromosome analysis of eight Palaearctic and Oriental speci es of white-toothed shrews reveals almost complete chromosomal homology bet ween the karyotypes studied, and extensive G-band homology is demonstrated even between species of the genera Crocidura and Suncas. Robertsonian trans locations, tandem fusions. fissions, whole-ann reciprocal translocations, c entromeric shifts, heterochromatin additions, and inversions are identified as the main mechanisms of chromosomal evolution. The evolutionary relation ships of the Eurasian crocidurines under study are reconstructed and a hypo thetical ancestral karyotype with 44 chromosomes is proposed.