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Diversification of mandarin citrus by hybrid speciation and apomixis

The origin and dispersal of cultivated and wild mandarin and related citrus are poorly understood. Here, comparative genome analysis of 69 new east Asian genomes and other mainland Asian citrus reveals a previously unrecognized wild sexual species native to the Ryukyu Islands: C. ryukyuensis sp. nov...

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Autores principales: Wu, Guohong Albert, Sugimoto, Chikatoshi, Kinjo, Hideyasu, Azama, Chika, Mitsube, Fumimasa, Talon, Manuel, Gmitter, Frederick G., Rokhsar, Daniel S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313541/
https://www.ncbi.nlm.nih.gov/pubmed/34312382
http://dx.doi.org/10.1038/s41467-021-24653-0
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author Wu, Guohong Albert
Sugimoto, Chikatoshi
Kinjo, Hideyasu
Azama, Chika
Mitsube, Fumimasa
Talon, Manuel
Gmitter, Frederick G.
Rokhsar, Daniel S.
author_facet Wu, Guohong Albert
Sugimoto, Chikatoshi
Kinjo, Hideyasu
Azama, Chika
Mitsube, Fumimasa
Talon, Manuel
Gmitter, Frederick G.
Rokhsar, Daniel S.
author_sort Wu, Guohong Albert
collection PubMed
description The origin and dispersal of cultivated and wild mandarin and related citrus are poorly understood. Here, comparative genome analysis of 69 new east Asian genomes and other mainland Asian citrus reveals a previously unrecognized wild sexual species native to the Ryukyu Islands: C. ryukyuensis sp. nov. The taxonomic complexity of east Asian mandarins then collapses to a satisfying simplicity, accounting for tachibana, shiikuwasha, and other traditional Ryukyuan mandarin types as homoploid hybrid species formed by combining C. ryukyuensis with various mainland mandarins. These hybrid species reproduce clonally by apomictic seed, a trait shared with oranges, grapefruits, lemons and many cultivated mandarins. We trace the origin of apomixis alleles in citrus to mangshanyeju wild mandarins, which played a central role in citrus domestication via adaptive wild introgression. Our results provide a coherent biogeographic framework for understanding the diversity and domestication of mandarin-type citrus through speciation, admixture, and rapid diffusion of apomictic reproduction.
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spelling pubmed-83135412021-08-03 Diversification of mandarin citrus by hybrid speciation and apomixis Wu, Guohong Albert Sugimoto, Chikatoshi Kinjo, Hideyasu Azama, Chika Mitsube, Fumimasa Talon, Manuel Gmitter, Frederick G. Rokhsar, Daniel S. Nat Commun Article The origin and dispersal of cultivated and wild mandarin and related citrus are poorly understood. Here, comparative genome analysis of 69 new east Asian genomes and other mainland Asian citrus reveals a previously unrecognized wild sexual species native to the Ryukyu Islands: C. ryukyuensis sp. nov. The taxonomic complexity of east Asian mandarins then collapses to a satisfying simplicity, accounting for tachibana, shiikuwasha, and other traditional Ryukyuan mandarin types as homoploid hybrid species formed by combining C. ryukyuensis with various mainland mandarins. These hybrid species reproduce clonally by apomictic seed, a trait shared with oranges, grapefruits, lemons and many cultivated mandarins. We trace the origin of apomixis alleles in citrus to mangshanyeju wild mandarins, which played a central role in citrus domestication via adaptive wild introgression. Our results provide a coherent biogeographic framework for understanding the diversity and domestication of mandarin-type citrus through speciation, admixture, and rapid diffusion of apomictic reproduction. Nature Publishing Group UK 2021-07-26 /pmc/articles/PMC8313541/ /pubmed/34312382 http://dx.doi.org/10.1038/s41467-021-24653-0 Text en © This is a U.S. Government work and not under copyright protection in the US; foreign copyright protection may apply 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Wu, Guohong Albert
Sugimoto, Chikatoshi
Kinjo, Hideyasu
Azama, Chika
Mitsube, Fumimasa
Talon, Manuel
Gmitter, Frederick G.
Rokhsar, Daniel S.
Diversification of mandarin citrus by hybrid speciation and apomixis
title Diversification of mandarin citrus by hybrid speciation and apomixis
title_full Diversification of mandarin citrus by hybrid speciation and apomixis
title_fullStr Diversification of mandarin citrus by hybrid speciation and apomixis
title_full_unstemmed Diversification of mandarin citrus by hybrid speciation and apomixis
title_short Diversification of mandarin citrus by hybrid speciation and apomixis
title_sort diversification of mandarin citrus by hybrid speciation and apomixis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8313541/
https://www.ncbi.nlm.nih.gov/pubmed/34312382
http://dx.doi.org/10.1038/s41467-021-24653-0
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