PMID- 28992625
OWN - NLM
STAT- MEDLINE
DCOM- 20171204
LR  - 20171204
IS  - 1424-859X (Electronic)
IS  - 1424-8581 (Linking)
VI  - 152
IP  - 4
DP  - 2017
TI  - B Chromosome Variants of the Grasshopper Xyleus discoideus angulatus Are 
      Potentially Derived from Pericentromeric DNA.
PG  - 213-221
LID - 10.1159/000480036 [doi]
AB  - B chromosomes, extra elements present in the karyotypes of some eukaryote 
      species, have been described in the grasshopper Xyleus discoideus angulatus. 
      Although some studies have proposed an autosomal origin of the B chromosome in X. 
      d. angulatus, little is known about its repetitive DNA composition and 
      evolutionary dynamics. The aim of the present work was to shed light on the B 
      chromosome evolution in X. d. angulatus by cytogenetic analysis of 27 populations 
      from Pernambuco and Ceara states (Brazil). The frequency of B chromosomes in the 
      different populations was determined, and chromosome measurements and 
      fluorescence in situ hybridization (FISH) with C0t-DNA and telomeric and B 
      chromosome sequences were performed in cells from B-carrying individuals. The 
      results revealed variations in B chromosome prevalence among the populations and 
      showed that some B chromosomes were smaller in certain populations. FISH produced 
      similar patterns for the C0t-DNA probe in all hybridized individuals, whereas 
      telomeric and B chromosome probes, obtained by microdissection, exhibited 
      variations in their distribution. These results indicate the presence of 3 
      morphotypes of B chromosomes in X. d. angulatus, with variation in repetitive DNA 
      composition during their evolution. In this species, B chromosomes have an 
      intraspecific origin and probably arose from the pericentromeric region of A 
      chromosomes.
CI  - (c) 2017 S. Karger AG, Basel.
FAU - Bernardino, Andrezza C S
AU  - Bernardino ACS
AD  - Departamento de Genetica, Centro de Biociencias, Universidade Federal de 
      Pernambuco (UFPE), Recife, Brazil.
FAU - Cabral-de-Mello, Diogo C
AU  - Cabral-de-Mello DC
FAU - Machado, Carolina B
AU  - Machado CB
FAU - Palacios-Gimenez, Octavio M
AU  - Palacios-Gimenez OM
FAU - Santos, Neide
AU  - Santos N
FAU - Loreto, Vilma
AU  - Loreto V
LA  - eng
PT  - Journal Article
DEP - 20171010
PL  - Switzerland
TA  - Cytogenet Genome Res
JT  - Cytogenetic and genome research
JID - 101142708
RN  - 9007-49-2 (DNA)
SB  - IM
MH  - Animals
MH  - Brazil
MH  - Centromere/genetics
MH  - Chromosome Mapping
MH  - Chromosomes/genetics
MH  - DNA/genetics
MH  - Evolution, Molecular
MH  - Genetic Variation
MH  - Genetics, Population
MH  - Genome, Insect
MH  - Grasshoppers/*genetics
MH  - In Situ Hybridization, Fluorescence
MH  - Karyotyping
MH  - Repetitive Sequences, Nucleic Acid
MH  - Telomere/genetics
MH  - X Chromosome/genetics
OTO - NOTNLM
OT  - C0t-DNA
OT  - Evolution
OT  - FISH
OT  - Microdissection
OT  - Population
EDAT- 2017/10/11 06:00
MHDA- 2017/12/05 06:00
CRDT- 2017/10/10 06:00
PHST- 2017/07/07 00:00 [accepted]
PHST- 2017/10/11 06:00 [pubmed]
PHST- 2017/12/05 06:00 [medline]
PHST- 2017/10/10 06:00 [entrez]
AID - 000480036 [pii]
AID - 10.1159/000480036 [doi]
PST - ppublish
SO  - Cytogenet Genome Res. 2017;152(4):213-221. doi: 10.1159/000480036. Epub 2017 Oct 
      10.