Comparative analysis of C-heterochromatin, ribosomal and telomeric DNA markers in chromosomes of Pamphagidae grasshoppers from Morocco.

Abstract:

:The karyotypes and the localization of C-bands, clusters of ribosomal DNA and telomeric repeats of 10 species of the family Pamphagidae from Morocco are described for the first time. The species studied belong to the subfamilies Pamphaginae and Thrinchinae. All species have karyotypes consisting of 19 and 20 acrocentric chromosomes and X0/XX sex chromosome system in males and females, respectively (2n♂=19, NF=19; 2n♀=20, NF=20). Despite the karyotype conservatism, we revealed differences in the location and size of C-heterochromatin blocks and ribosomal DNA clusters. A comparative analysis of these differences shows that karyotype divergences in this group is connected not to structural chromosome rearrangements, but to the evolution of repetitive DNA.

journal_name

Comp Cytogenet

journal_title

Comparative cytogenetics

authors

Buleu OG,Jetybayev IY,Chobanov DP,Bugrov AG

doi

10.3897/CompCytogen.v13i1.32039

subject

Has Abstract

pub_date

2019-02-27 00:00:00

pages

61-74

issue

1

eissn

1993-0771

issn

1993-078X

journal_volume

13

pub_type

杂志文章