Nanger, Eudorcas, Gazella, and Antilope form a well-supported chromosomal clade within Antilopini (Bovidae, Cetartiodactyla)
The evolutionary clade comprising Nanger , Eudorcas , Gazella , and Antilope , defined by an X;BTA5 translocation, is noteworthy for the many autosomal Robertsonian fusions that have driven the chromosome number variation from 2 n = 30 observed in Antilope cervicapra , to the 2 n = 58 in present E...
Saved in:
Published in | Chromosoma Vol. 124; no. 2; pp. 235 - 247 |
---|---|
Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.06.2015
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The evolutionary clade comprising
Nanger
,
Eudorcas
,
Gazella
, and
Antilope
, defined by an X;BTA5 translocation, is noteworthy for the many autosomal Robertsonian fusions that have driven the chromosome number variation from 2
n
= 30 observed in
Antilope cervicapra
, to the 2
n
= 58 in present
Eudorcas thomsoni
and
Eudorcas rufifrons
. This work reports the phylogenetic relationships within the Antilopini using comprehensive cytogenetic data from
A. cervicapra
,
Gazella leptoceros
,
Nanger dama ruficollis
, and
E. thomsoni
together with corrected karyotypic data from an additional nine species previously reported in the literature. Fluorescence in situ hybridization using BAC and microdissected cattle painting probes, in conjunction with differential staining techniques, provide the following: (i) a detailed analysis of the
E. thomsoni
chromosomes, (ii) the identification and fine-scale analysis the BTA3 orthologue in species of Antilopini, and (iii) the location of the pseudoautosomal regions on sex chromosomes of the four species. Our phylogenetic analysis of the chromosomal data supports monophyly of
Nanger
and
Eudorcas
and suggests an affiliation between
A. cervicapra
and some of the
Gazella
species. This renders
Gazella
paraphyletic and emphasizes a closer relationship between
Antilope
and
Gazella
than what has previously been considered. |
---|---|
Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0009-5915 1432-0886 |
DOI: | 10.1007/s00412-014-0494-5 |