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Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula
Hybrid incompatibility plays an important role in establishment of post-zygotic reproductive isolation. To unveil genetic basis of hybrid incompatibilities between diverged species of genus Oryza AA genome species, we conducted genetic dissection of hybrid sterility loci, S22(t), which had been iden...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Japanese Society of Breeding
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4267305/ https://www.ncbi.nlm.nih.gov/pubmed/25914585 http://dx.doi.org/10.1270/jsbbs.64.309 |
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author | Sakata, Mitsukazu Yamagata, Yoshiyuki Doi, Kazuyuki Yoshimura, Atsushi |
author_facet | Sakata, Mitsukazu Yamagata, Yoshiyuki Doi, Kazuyuki Yoshimura, Atsushi |
author_sort | Sakata, Mitsukazu |
collection | PubMed |
description | Hybrid incompatibility plays an important role in establishment of post-zygotic reproductive isolation. To unveil genetic basis of hybrid incompatibilities between diverged species of genus Oryza AA genome species, we conducted genetic dissection of hybrid sterility loci, S22(t), which had been identified in backcross progeny derived from Oryza sativa ssp. japonica (recurrent parent) and South American wild rice O. glumaepatula near the end of the short arm of chromosome 2. The S22(t) region was found to be composed of two loci, designated S22A and S22B, that independently induce F(1) pollen sterility. Pollen grains containing either of the sterile alleles (S22A-glum(s) or S22B-glum(s)) were sterile if produced on a heterozygous plant. No transmission of the S22A-glum(s) allele via pollen was observed, whereas a low frequency of transmission of S22B-glum(s) was observed. Cytological analysis showed that the sterile pollen grains caused by S22A could reach the bicellular or tricellular stage, and the nearly-sterile pollen grains caused by S22B could reach the tricellular stage. Our genetic analysis showed repulsion linkage effect is possible to induce strong reproductive barrier by high pollen sterility based on recombination value and transmission ratio of hybrid sterility gene to the progeny was influenced by frequency of competitors on fertilization. |
format | Online Article Text |
id | pubmed-4267305 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Japanese Society of Breeding |
record_format | MEDLINE/PubMed |
spelling | pubmed-42673052015-04-24 Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula Sakata, Mitsukazu Yamagata, Yoshiyuki Doi, Kazuyuki Yoshimura, Atsushi Breed Sci Research Papers Hybrid incompatibility plays an important role in establishment of post-zygotic reproductive isolation. To unveil genetic basis of hybrid incompatibilities between diverged species of genus Oryza AA genome species, we conducted genetic dissection of hybrid sterility loci, S22(t), which had been identified in backcross progeny derived from Oryza sativa ssp. japonica (recurrent parent) and South American wild rice O. glumaepatula near the end of the short arm of chromosome 2. The S22(t) region was found to be composed of two loci, designated S22A and S22B, that independently induce F(1) pollen sterility. Pollen grains containing either of the sterile alleles (S22A-glum(s) or S22B-glum(s)) were sterile if produced on a heterozygous plant. No transmission of the S22A-glum(s) allele via pollen was observed, whereas a low frequency of transmission of S22B-glum(s) was observed. Cytological analysis showed that the sterile pollen grains caused by S22A could reach the bicellular or tricellular stage, and the nearly-sterile pollen grains caused by S22B could reach the tricellular stage. Our genetic analysis showed repulsion linkage effect is possible to induce strong reproductive barrier by high pollen sterility based on recombination value and transmission ratio of hybrid sterility gene to the progeny was influenced by frequency of competitors on fertilization. Japanese Society of Breeding 2014-12 2014-12-01 /pmc/articles/PMC4267305/ /pubmed/25914585 http://dx.doi.org/10.1270/jsbbs.64.309 Text en Copyright © 2014 by JAPANESE SOCIETY OF BREEDING http://creativecommons.org/licenses/by-nc-nd/3.0 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 work is properly cited. |
spellingShingle | Research Papers Sakata, Mitsukazu Yamagata, Yoshiyuki Doi, Kazuyuki Yoshimura, Atsushi Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title | Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title_full | Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title_fullStr | Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title_full_unstemmed | Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title_short | Two linked genes on rice chromosome 2 for F(1) pollen sterility in a hybrid between Oryza sativa and O. glumaepatula |
title_sort | two linked genes on rice chromosome 2 for f(1) pollen sterility in a hybrid between oryza sativa and o. glumaepatula |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4267305/ https://www.ncbi.nlm.nih.gov/pubmed/25914585 http://dx.doi.org/10.1270/jsbbs.64.309 |
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