ArticleMolecular genetics and genomics : MGG2019
First report on B chromosome content in a reptilian species: the case of Anolis carolinensis.
Article in Molecular genetics and genomics : MGG, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- Chromosome-level genome assembly and transcriptomes of the leaf insect Cryptophyllium westwoodii provide insights into the evolution of leaf-like masquerade.GigaScience · 2026Article
- Article
- Comprehending the dynamism of B chromosomes in their journey towards becoming unselfish.Frontiers in cell and developmental biology · 2022Review
- Out of patterns, the euchromatic B chromosome of the grasshopper Abracris flavolineata is not enriched in high-copy repeats.Heredity · 2021Article
- Unravelling the mystery of female meiotic drive: where we are.Open biology · 2021Review
- A genomic glimpse of B chromosomes in cichlids.Genes & genomics · 2021Review
- Bridging the Gap between Vertebrate Cytogenetics and Genomics with Single-Chromosome Sequencing (ChromSeq).Genes · 2021Review
- Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players.Frontiers in genetics · 2021Review
- Genome and Karyotype Reorganization after Whole Genome Duplication in Free-Living Flatworms of the GenusInternational journal of molecular sciences · 2020Article
- Review
- Article
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Authors and funding
9 authors.
Funding
Abstract
Supernumerary elements of the genome are often called B chromosomes. They usually consist of various autosomal sequences and, because of low selective pressure, are mostly pseudogenized and contain many repeats. There are numerous reports on B chromosomes in mammals, fish, invertebrates, plants, and fungi, but only a few of them have been studied using sequencing techniques. However, reptilian supernumerary chromosomes have been detected only cytogenetically and never sequenced or analyzed at the molecular level. One model squamate species with available genome sequence is Anolis carolinensis. The scope of the present article is to describe the genetic content of A. carolinensis supernumerary chromosomes. In this article, we confirm the presence of B chromosomes in this species by reverse painting and synaptonemal complex analysis. We applied low-pass high-throughput sequencing to analyze flow-sorted B chromosomes. Anole B chromosomes exhibit similar traits to other supernumerary chromosomes from different taxons: they contain two genes related to cell division control (INCENP and SPIRE2), are enriched in specific repeats, and show a high degree of pseudogenization. Therefore, the present study confirms that reptilian B chromosomes resemble supernumerary chromosomes of other taxons.
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