Comparison of karyotypes in two hybridizing passerine species: conserved chromosomal structure but divergence in centromeric repeats

M Poignet, M Johnson Pokorná, M Altmanová… - Frontiers in …, 2021 - frontiersin.org
Changes in chromosomal structure involving chromosomal rearrangements or copy number
variation of specific sequences can play an important role in speciation. Here, we explored …

The relevance of chromosome fissions for major ribosomal DNA dispersion in hymenopteran insects

RST Menezes, DC Cabral‐de‐Mello… - Journal of …, 2021 - academic.oup.com
Ribosomal DNA (rDNA) loci are essential for cellular metabolism due to their participation in
ribosome biogenesis. Although these genes have been widely cytogenetically mapped, the …

Multiple heterochromatin diversification events in the genome of fungus-farming ants: insights from repetitive sequences

GA Teixeira, LAC Barros, HJAC de Aguiar, DM Lopes - Chromosoma, 2022 - Springer
A substantial portion of the eukaryotic genome includes repetitive DNA, which is important
for its stability, regulation, and architecture. Fungus-farming ant genomes show remarkable …

Cytotaxonomy and karyotype evolution in Neotropical Meliponini (Hymenoptera: Apidae) inferred by chromosomal mapping of 18S rDNA and five microsatellites

MS Cunha, MVB Garcia, LAO Campos… - Journal of Apicultural …, 2024 - Taylor & Francis
Abstract The Neotropical Meliponini bees, commonly known as stingless bees, are
phylogenetically subdivided into three clades in which the chromosome numbers vary from …

[HTML][HTML] Structure and Evolution of Ribosomal Genes of Insect Chromosomes

VE Gokhman, VG Kuznetsova - Insects, 2024 - mdpi.com
Simple Summary The class Insecta constitutes the largest group of terrestrial animals, with
more than a million described species. As in all other animals, insect genomes contain …

[HTML][HTML]  Physical chromosomal mapping of major ribosomal genes in 15 ant species with a review of hypotheses regarding evolution of the number and position of …

MT dos Santos Damasceno, GA Teixeira… - Comparative …, 2024 - ncbi.nlm.nih.gov
 Abstract Recently, hypotheses regarding the evolutionary patterns of ribosomal genes in ant
chromosomes have been under discussion. One of these hypotheses proposes a …

Expanding the chromosomal evolution understanding of lygaeioid true bugs (Lygaeoidea, Pentatomomorpha, Heteroptera) by classical and molecular cytogenetic …

NV Golub, A Maryańska-Nadachowska, BA Anokhin… - Genes, 2023 - mdpi.com
The Lygaeoidea comprise about 4660 species in 790 genera and 16 families. Using
standard chromosome staining and FISH with 18S rDNA and telomeric (TTAGG) n probes …

Cytogenetic studies on the social parasite Acromyrmex ameliae (Formicidae: Myrmicinae: Attini) and its hosts reveal chromosome fusion in Acromyrmex

LAC Barros, HJAC de Aguiar, GA Teixeira… - Zoologischer …, 2021 - Elsevier
The ant Acromyrmex ameliae is a social parasite of two leaf-cutting ant subspecies:
Acromyrmex subterraneus subterraneus and A. subterraneus brunneus. Cytogenetic data …

Karyotypic variation in the stingless bee Trigona spinipes (Hymenoptera: Apidae: Meliponini) from different geographical regions of Brazil

MG Tavares, RP Ferreira, NM Travenzoli, DM Lopes - Apidologie, 2021 - Springer
Molecular cytogenetic reveal details of fine chromosomal structure that are useful in studies
of chromosomal diversification, genome organization, and evolution. However, these …

Cytogenetics of Strumigenys louisianae Roger, 1863 (Formicidae: Myrmicinae) from North-eastern Amazonia shed light on a difficult species complex

LAC Barros, JCM Chaul, J Orivel, HJAC de Aguiar - Zoologischer Anzeiger, 2021 - Elsevier
Cytogenetic techniques provide powerful insights on species-rich taxa–such as ants–
allowing better understanding of their biodiversity. Some hints on evolutionary paths can be …