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B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences

B chromosomes (Bs) are dispensable components of the genome exhibiting non-Mendelian inheritance. Chromosome counts and flow cytometric analysis of the grass species Aegilops speltoides revealed a tissue-type specific distribution of the roughly 570 Mbp large B chromosomes. To address the question w...

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Autores principales: Ruban, Alevtina, Fuchs, Jörg, Marques, André, Schubert, Veit, Soloviev, Alexander, Raskina, Olga, Badaeva, Ekaterina, Houben, Andreas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936023/
https://www.ncbi.nlm.nih.gov/pubmed/24587288
http://dx.doi.org/10.1371/journal.pone.0090214
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author Ruban, Alevtina
Fuchs, Jörg
Marques, André
Schubert, Veit
Soloviev, Alexander
Raskina, Olga
Badaeva, Ekaterina
Houben, Andreas
author_facet Ruban, Alevtina
Fuchs, Jörg
Marques, André
Schubert, Veit
Soloviev, Alexander
Raskina, Olga
Badaeva, Ekaterina
Houben, Andreas
author_sort Ruban, Alevtina
collection PubMed
description B chromosomes (Bs) are dispensable components of the genome exhibiting non-Mendelian inheritance. Chromosome counts and flow cytometric analysis of the grass species Aegilops speltoides revealed a tissue-type specific distribution of the roughly 570 Mbp large B chromosomes. To address the question whether organelle-to-nucleus DNA transfer is a mechanism that drives the evolution of Bs, in situ hybridization was performed with labelled organellar DNA. The observed B-specific accumulation of chloroplast- and mitochondria-derived sequences suggests a reduced selection against the insertion of organellar DNA in supernumerary chromosomes. The distribution of B-localised organellar-derived sequences and other sequences differs between genotypes of different geographical origins.
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spelling pubmed-39360232014-03-04 B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences Ruban, Alevtina Fuchs, Jörg Marques, André Schubert, Veit Soloviev, Alexander Raskina, Olga Badaeva, Ekaterina Houben, Andreas PLoS One Research Article B chromosomes (Bs) are dispensable components of the genome exhibiting non-Mendelian inheritance. Chromosome counts and flow cytometric analysis of the grass species Aegilops speltoides revealed a tissue-type specific distribution of the roughly 570 Mbp large B chromosomes. To address the question whether organelle-to-nucleus DNA transfer is a mechanism that drives the evolution of Bs, in situ hybridization was performed with labelled organellar DNA. The observed B-specific accumulation of chloroplast- and mitochondria-derived sequences suggests a reduced selection against the insertion of organellar DNA in supernumerary chromosomes. The distribution of B-localised organellar-derived sequences and other sequences differs between genotypes of different geographical origins. Public Library of Science 2014-02-26 /pmc/articles/PMC3936023/ /pubmed/24587288 http://dx.doi.org/10.1371/journal.pone.0090214 Text en © 2014 Ruban et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Ruban, Alevtina
Fuchs, Jörg
Marques, André
Schubert, Veit
Soloviev, Alexander
Raskina, Olga
Badaeva, Ekaterina
Houben, Andreas
B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title_full B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title_fullStr B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title_full_unstemmed B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title_short B Chromosomes of Aegilops speltoides Are Enriched in Organelle Genome-Derived Sequences
title_sort b chromosomes of aegilops speltoides are enriched in organelle genome-derived sequences
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3936023/
https://www.ncbi.nlm.nih.gov/pubmed/24587288
http://dx.doi.org/10.1371/journal.pone.0090214
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