Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice

The related A genome species of the Oryza genus are the effective gene pool for rice. Here, we report draft genomes for two Australian wild A genome taxa: O. rufipogon‐like population, referred to as Taxon A, and O. meridionalis‐like population, referred to as Taxon B. These two taxa were sequenced...

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Autores principales: Brozynska, Marta, Copetti, Dario, Furtado, Agnelo, Wing, Rod A., Crayn, Darren, Fox, Glen, Ishikawa, Ryuji, Henry, Robert J.
Formato: Journal Article
Lenguaje:Inglés
Publicado: Wiley 2017
Acceso en línea:https://hdl.handle.net/10568/165111
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author Brozynska, Marta
Copetti, Dario
Furtado, Agnelo
Wing, Rod A.
Crayn, Darren
Fox, Glen
Ishikawa, Ryuji
Henry, Robert J.
author_browse Brozynska, Marta
Copetti, Dario
Crayn, Darren
Fox, Glen
Furtado, Agnelo
Henry, Robert J.
Ishikawa, Ryuji
Wing, Rod A.
author_facet Brozynska, Marta
Copetti, Dario
Furtado, Agnelo
Wing, Rod A.
Crayn, Darren
Fox, Glen
Ishikawa, Ryuji
Henry, Robert J.
author_sort Brozynska, Marta
collection Repository of Agricultural Research Outputs (CGSpace)
description The related A genome species of the Oryza genus are the effective gene pool for rice. Here, we report draft genomes for two Australian wild A genome taxa: O. rufipogon‐like population, referred to as Taxon A, and O. meridionalis‐like population, referred to as Taxon B. These two taxa were sequenced and assembled by integration of short‐ and long‐read next‐generation sequencing (NGS) data to create a genomic platform for a wider rice gene pool. Here, we report that, despite the distinct chloroplast genome, the nuclear genome of the Australian Taxon A has a sequence that is much closer to that of domesticated rice (O. sativa) than to the other Australian wild populations. Analysis of 4643 genes in the A genome clade showed that the Australian annual, O. meridionalis, and related perennial taxa have the most divergent (around 3 million years) genome sequences relative to domesticated rice. A test for admixture showed possible introgression into the Australian Taxon A (diverged around 1.6 million years ago) especially from the wild indica/O. nivara clade in Asia. These results demonstrate that northern Australia may be the centre of diversity of the A genome Oryza and suggest the possibility that this might also be the centre of origin of this group and represent an important resource for rice improvement.
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spelling CGSpace1651112024-12-22T05:44:55Z Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice Brozynska, Marta Copetti, Dario Furtado, Agnelo Wing, Rod A. Crayn, Darren Fox, Glen Ishikawa, Ryuji Henry, Robert J. The related A genome species of the Oryza genus are the effective gene pool for rice. Here, we report draft genomes for two Australian wild A genome taxa: O. rufipogon‐like population, referred to as Taxon A, and O. meridionalis‐like population, referred to as Taxon B. These two taxa were sequenced and assembled by integration of short‐ and long‐read next‐generation sequencing (NGS) data to create a genomic platform for a wider rice gene pool. Here, we report that, despite the distinct chloroplast genome, the nuclear genome of the Australian Taxon A has a sequence that is much closer to that of domesticated rice (O. sativa) than to the other Australian wild populations. Analysis of 4643 genes in the A genome clade showed that the Australian annual, O. meridionalis, and related perennial taxa have the most divergent (around 3 million years) genome sequences relative to domesticated rice. A test for admixture showed possible introgression into the Australian Taxon A (diverged around 1.6 million years ago) especially from the wild indica/O. nivara clade in Asia. These results demonstrate that northern Australia may be the centre of diversity of the A genome Oryza and suggest the possibility that this might also be the centre of origin of this group and represent an important resource for rice improvement. 2017-06 2024-12-19T12:54:43Z 2024-12-19T12:54:43Z Journal Article https://hdl.handle.net/10568/165111 en Open Access Wiley Brozynska, Marta; Copetti, Dario; Furtado, Agnelo; Wing, Rod A.; Crayn, Darren; Fox, Glen; Ishikawa, Ryuji and Henry, Robert J. 2017. Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice. Plant Biotechnology Journal, Volume 15 no. 6 p. 765-774
spellingShingle Brozynska, Marta
Copetti, Dario
Furtado, Agnelo
Wing, Rod A.
Crayn, Darren
Fox, Glen
Ishikawa, Ryuji
Henry, Robert J.
Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title_full Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title_fullStr Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title_full_unstemmed Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title_short Sequencing of Australian wild rice genomes reveals ancestral relationships with domesticated rice
title_sort sequencing of australian wild rice genomes reveals ancestral relationships with domesticated rice
url https://hdl.handle.net/10568/165111
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