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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
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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. |
format | Online Article Text |
id | pubmed-3936023 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
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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