Diversification of mandarin citrus by hybrid speciation and apomixis
Abstract
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.
- Authors:
-
[1];
[2];
[5];
[6]
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Okinawa Inst. of Science and Technology Graduate Univ. (Japan)
- Okinawa Prefectural Agricultural Research Center (Japan)
- Inst. Valenciano de Investigaciones Agrarias (Spain)
- Univ. of Florida, Lake Alfred, FL (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Okinawa Institute of Science and Technology Graduate Univ. (Japan); Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- OSTI Identifier:
- 1820335
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; Agricultural genetics; Evolutionary genetics; Genetic variation; Plant domestication
Citation Formats
Wu, Guohong Albert, Sugimoto, Chikatoshi, Kinjo, Hideyasu, Azama, Chika, Mitsube, Fumimasa, Talon, Manuel, Gmitter, Jr., Frederick G., and Rokhsar, Daniel S. Diversification of mandarin citrus by hybrid speciation and apomixis. United States: N. p., 2021.
Web. doi:10.1038/s41467-021-24653-0.
Wu, Guohong Albert, Sugimoto, Chikatoshi, Kinjo, Hideyasu, Azama, Chika, Mitsube, Fumimasa, Talon, Manuel, Gmitter, Jr., Frederick G., & Rokhsar, Daniel S. Diversification of mandarin citrus by hybrid speciation and apomixis. United States. https://doi.org/10.1038/s41467-021-24653-0
Wu, Guohong Albert, Sugimoto, Chikatoshi, Kinjo, Hideyasu, Azama, Chika, Mitsube, Fumimasa, Talon, Manuel, Gmitter, Jr., Frederick G., and Rokhsar, Daniel S. Mon .
"Diversification of mandarin citrus by hybrid speciation and apomixis". United States. https://doi.org/10.1038/s41467-021-24653-0. https://www.osti.gov/servlets/purl/1820335.
@article{osti_1820335,
title = {Diversification of mandarin citrus by hybrid speciation and apomixis},
author = {Wu, Guohong Albert and Sugimoto, Chikatoshi and Kinjo, Hideyasu and Azama, Chika and Mitsube, Fumimasa and Talon, Manuel and Gmitter, Jr., Frederick G. and Rokhsar, Daniel S.},
abstractNote = {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.},
doi = {10.1038/s41467-021-24653-0},
journal = {Nature Communications},
number = 1,
volume = 12,
place = {United States},
year = {Mon Jul 26 00:00:00 EDT 2021},
month = {Mon Jul 26 00:00:00 EDT 2021}
}
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