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Reloading DNA History in Rice Domestication

Although crop domestication is a prehistoric event, DNA (or genome) sequences of modern cultivars and the accession lines of wild relatives contain information regarding the history of crop domestication and the breeding process. Accordingly, with plentiful genomic data, many new findings have been...

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Autor principal: Izawa, Takeshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9680854/
https://www.ncbi.nlm.nih.gov/pubmed/35656860
http://dx.doi.org/10.1093/pcp/pcac073
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author Izawa, Takeshi
author_facet Izawa, Takeshi
author_sort Izawa, Takeshi
collection PubMed
description Although crop domestication is a prehistoric event, DNA (or genome) sequences of modern cultivars and the accession lines of wild relatives contain information regarding the history of crop domestication and the breeding process. Accordingly, with plentiful genomic data, many new findings have been obtained concerning the crop domestication process, for which various (some controversial) interpretations exist. Since approximately 20 years ago, dozens of quantitative trait genes (QTGs) related to the domestication process have been cloned from several crops including rice, a global staple food. However, the determination of how and when these QTGs were involved in rice domestication requires a precise understanding of the DNA code. In addition to the identification of domestication-related QTGs, large-scale rice genome analysis based on short-read Illumina data (but with shallow depth) including more than 1,000 rice cultivars and hundreds of wild rice (or Oryza rufipogon) lines, along with extensive genome analysis including more than 3,000 cultivars with sufficient Illumina data, has been reported. From these data, the genome-wide changes during rice domestication have been explained. However, these genome-wide changes were not interpreted based on QTG changes for domestication-related traits during rice domestication. In addition, a substantial gap remains between the archeological hypothesis based on ancient relics and findings from DNA variations among current cultivars. Thus, this review reconsiders the present status of rice domestication research from a biologist’s perspective.
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spelling pubmed-96808542022-11-23 Reloading DNA History in Rice Domestication Izawa, Takeshi Plant Cell Physiol Special Issue—Review Although crop domestication is a prehistoric event, DNA (or genome) sequences of modern cultivars and the accession lines of wild relatives contain information regarding the history of crop domestication and the breeding process. Accordingly, with plentiful genomic data, many new findings have been obtained concerning the crop domestication process, for which various (some controversial) interpretations exist. Since approximately 20 years ago, dozens of quantitative trait genes (QTGs) related to the domestication process have been cloned from several crops including rice, a global staple food. However, the determination of how and when these QTGs were involved in rice domestication requires a precise understanding of the DNA code. In addition to the identification of domestication-related QTGs, large-scale rice genome analysis based on short-read Illumina data (but with shallow depth) including more than 1,000 rice cultivars and hundreds of wild rice (or Oryza rufipogon) lines, along with extensive genome analysis including more than 3,000 cultivars with sufficient Illumina data, has been reported. From these data, the genome-wide changes during rice domestication have been explained. However, these genome-wide changes were not interpreted based on QTG changes for domestication-related traits during rice domestication. In addition, a substantial gap remains between the archeological hypothesis based on ancient relics and findings from DNA variations among current cultivars. Thus, this review reconsiders the present status of rice domestication research from a biologist’s perspective. Oxford University Press 2022-06-03 /pmc/articles/PMC9680854/ /pubmed/35656860 http://dx.doi.org/10.1093/pcp/pcac073 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of Japanese Society of Plant Physiologists. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Special Issue—Review
Izawa, Takeshi
Reloading DNA History in Rice Domestication
title Reloading DNA History in Rice Domestication
title_full Reloading DNA History in Rice Domestication
title_fullStr Reloading DNA History in Rice Domestication
title_full_unstemmed Reloading DNA History in Rice Domestication
title_short Reloading DNA History in Rice Domestication
title_sort reloading dna history in rice domestication
topic Special Issue—Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9680854/
https://www.ncbi.nlm.nih.gov/pubmed/35656860
http://dx.doi.org/10.1093/pcp/pcac073
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