ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2018
Distribution of CR1-like transposable element in woodpeckers (Aves Piciformes): Z sex chromosomes can act as a refuge for transposable elements.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 17 citations in OpenAlex.
- Evolutionary Consequences of Unusually Large Pericentric TE-rich Regions in the Genome of a Neotropical Fig Wasp.Genome biology and evolution · 2025Article
- Genomic Organization of Microsatellites andAnimals : an open access journal from MDPI · 2022Article
- Expression Plasticity of Transposable Elements Is Highly Associated with Organismal Re-adaptation to Ancestral Environments.Genome biology and evolution · 2022Article
- Accumulation and ineffective silencing of transposable elements on an avian W Chromosome.Genome research · 2022Article
- Do Ty3/Gypsy Transposable Elements Play Preferential Roles in Sex Chromosome Differentiation?Life (Basel, Switzerland) · 2022Review
- Interpopulation variation of transposable elements of the hAT superfamily in Drosophila willistoni (Diptera: Drosophilidae): in-situ approach.Genetics and molecular biology · 2022Article
- Review
- De novo assembly of a chromosome-scale reference genome for the northern flicker Colaptes auratus.G3 (Bethesda, Md.) · 2021Article
- High dynamism for neo-sex chromosomes: satellite DNAs reveal complex evolution in a grasshopper.Heredity · 2020Article
- A Highly Contiguous Genome for the Golden-Fronted Woodpecker (G3 (Bethesda, Md.) · 2020Article
- Sex and the TEs: transposable elements in sexual development and function in animals.Mobile DNA · 2019Review
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Birds have relatively few repetitive sequences compared to other groups of vertebrates; however, the members of order Piciformes (woodpeckers) have more of these sequences, composed mainly of transposable elements (TE). The TE most often found in birds is a retrotransposon chicken repeat 1 (CR1). Piciformes lineages were subjected to an expansion of the CR1 elements, carrying a larger fraction of transposable elements. This study compared patterns of chromosome distribution among five bird species, through chromosome mapping of the CR1 sequence and reconstructed their phylogenetic tree. We analyzed several members of Piciformes (Colaptes campestris, Colaptes melanochloros, Melanerpes candidus, and Veniliornis spilogaster), as well as Galliformes (Gallus gallus). Gallus gallus is the species with which most genomic and hence cytogenetic studies have been performed. The results showed that CR1 sequences are a monophyletic group and do not depend on their hosts. All species analyzed showed a hybridization signal by fluorescence in situ hybridization (FISH). In all species, the chromosomal distribution of CR1 was not restricted to heterochromatin regions in the macrochromosomes, principally pair 1 and the Z sex chromosome. Accumulation in the Z sex chromosomes can serve as a refuge for transposable elements. These results highlight the importance of transposable elements in host genomes and karyotype evolution.
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