Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Diversification of mandarin citrus by hybrid speciation and apomixis

Journal Article · · Nature Communications
 [1];  [2];  [3];  [2];  [3];  [4];  [5];  [6]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Okinawa Inst. of Science and Technology Graduate Univ. (Japan)
  3. Okinawa Prefectural Agricultural Research Center (Japan)
  4. Inst. Valenciano de Investigaciones Agrarias (Spain)
  5. Univ. of Florida, Lake Alfred, FL (United States)
  6. 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)
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.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1820335
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 12; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (55)

Dispersal ecology of the maritime plants in the Ryukyu Islands, Japan journal August 1988
Geographic patterns of endemism and speciation in amphibians and reptiles of the Ryukyu Archipelago, Japan, with special reference to their paleogeographical implications journal October 1998
Phylogeny and biogeography of the Viola iwagawae-tashiroi species complex (Violaceae, section Plagiostigma) endemic to the Ryukyu Archipelago, Japan journal June 2014
Diversity of Citrus depressa Hayata (Shiikuwasha) revealed by DNA analysis journal April 2016
Distribution and evolution of citrus with S 4 and/or S 5 gene alleles for self-incompatibility with special focus on the origin of satsuma mandarin (Citrus unshiu Marc.; S f S 4 ) journal December 2017
Molecular discrimination of landraces of Citrus species in the Okinawa, Japan journal November 2018
Genetic diversity and population structure analysis of mandarin germplasm by nuclear, chloroplastic and mitochondrial markers journal November 2015
QTL mapping of mandarin (Citrus reticulata) fruit characters using high-throughput SNP markers journal July 2016
Noemi Controls Production of Flavonoid Pigments and Fruit Acidity and Illustrates the Domestication Routes of Modern Citrus Varieties journal January 2019
Domestication: Colour and Flavour Joined by a Shared Transcription Factor journal January 2019
Genome of Wild Mandarin and Domestication History of Mandarin journal August 2018
Natural Variation in CCD4 Promoter Underpins Species-Specific Evolution of Red Coloration in Citrus Peel journal September 2019
Genomics of the origin and evolution of Citrus journal February 2018
Sequencing of diverse mandarin, pummelo and orange genomes reveals complex history of admixture during citrus domestication journal June 2014
Genomic analyses of primitive, wild and cultivated citrus provide insights into asexual reproduction journal April 2017
Hyperacidification of Citrus fruits by a vacuolar proton-pumping P-ATPase complex journal February 2019
Subfunctionalization of the Ruby2–Ruby1 gene cluster during the domestication of citrus journal October 2018
Evolution of self-compatibility by a mutant Sm-RNase in citrus journal February 2020
Testing the Genetic Relation Between Two Individuals Using a Panel of Frequency-unknown Single Nucleotide Polymorphisms journal November 2003
Citrus linczangensis sp. n., a Leaf Fossil of Rutaceae from the Late Miocene of Yunnan, China journal October 2013
Phylogenetic origin of limes and lemons revealed by cytoplasmic and nuclear markers journal March 2016
Fast and accurate short read alignment with Burrows-Wheeler transform journal May 2009
The variant call format and VCFtools journal June 2011
RAxML version 8: a tool for phylogenetic analysis and post-analysis of large phylogenies journal January 2014
From mainland to islands: colonization history in the tree frog Kurixalus (Anura: Rhacophoridae) journal May 2020
The Ecological Genetics of Homoploid Hybrid Speciation journal December 2004
Citrus Fruits of Japan journal June 1922
Fast model-based estimation of ancestry in unrelated individuals journal July 2009
The Genome Analysis Toolkit: A MapReduce framework for analyzing next-generation DNA sequencing data journal July 2010
Changes in Anthocyanin Production during Domestication of Citrus journal February 2017
Retrotransposons Control Fruit-Specific, Cold-Dependent Accumulation of Anthocyanins in Blood Oranges journal March 2012
Phylogeography of Ophiorrhiza japonica (Rubiaceae) in continental islands, the Ryukyu Archipelago, Japan journal July 2010
Riding the Kuroshio Current: Stepping stone dispersal of the Okinawa tree lizard across the East Asian Island Arc journal October 2017
The extent of adaptive wild introgression in crops journal October 2018
A chromosome‐scale reference genome of trifoliate orange ( Poncirus trifoliata ) provides insights into disease resistance, cold tolerance and genome evolution in Citrus journal October 2020
The Role of Hybridization in Plant Speciation journal June 2009
Identification of QTLs controlling aroma volatiles using a ‘Fortune’ x ‘Murcott’ (Citrus reticulata) population journal August 2017
MITE insertion-dependent expression of CitRKD1 with a RWP-RK domain regulates somatic embryogenesis in citrus nucellar tissues journal August 2018
Investigation of floristic similarities between Taiwan and terrestrial ecoregions in Asia using GBIF data journal March 2017
Multi-lineages of Shiikuwasha (Citrus depressa Hayata) evaluated by using whole chloroplast genome sequences and its bio-diversity in Okinawa, Japan journal January 2016
Hybrid Origins of Citrus Varieties Inferred from DNA Marker Analysis of Nuclear and Organelle Genomes journal November 2016
Inferring the Joint Demographic History of Multiple Populations: Beyond the Diffusion Approximation journal May 2017
A model for the domestication and diversification processes of modern citrus cultivars in Japan journal January 2019
Phylogeography of plants in Taiwan and the Ryukyu Archipelago journal February 2006
Biogeography and origin of Lilium longiflorum and L. formosanum (Liliaceae) endemic to the Ryukyu Archipelago and Taiwan as determined by allozyme diversity journal July 2001
Polymethoxylated Flavone Content of Major Cultivars and Local Accessions of Citrus Cultivated in Kagoshima, Japan journal January 2019
Local Citrus Genetic Resources and Their Polymethoxyflavones Content in Northern Part of Okinawa Island [沖縄本島北部のカンキツ遺伝資源およびそのポリメトキシフラボン含量] journal January 2010
A Survey and Isozyme Analysis of Wild Mandarin, Tachibana (Citrus tachibana (Mak.) Tanaka) Growing in Japan [日本におけるタチバナ (Citrus tachibana (Mak.) Tanaka) の分布とアイソザイム分析] journal January 1990
Diversity of Chloroplast DNA in Various Mandarins (Citrus spp.) and Other Citrus Demonstrated by CAPS Analysis journal January 2013
Adaptive Introgression: An Untapped Evolutionary Mechanism for Crop Adaptation journal February 2019
Pleistocene Vertebrate Faunas in the Ryukyu Islands: Their Migration and Extinction [琉球列島における更新世脊椎動物相:その渡来と絶滅] journal January 2000
Paleogeography of the Ryukyu Islands. journal January 2000
Numerical Studies on Circulations and their Variations in the Western Tropical Pacific and the Propical Indian Oceans. journal January 2000
Investigation of floristic similarities between Taiwan and terrestrial ecoregions in Asia using GBIF data collection January 2017
MITE insertion-dependent expression of CitRKD1 with a RWP-RK domain regulates somatic embryogenesis in citrus nucellar tissues collection January 2018

Similar Records

Complex history of admixture during citrus domestication revealed by genome analysis
Journal Article · Mon Jun 30 00:00:00 EDT 2014 · Nature Biotechnology · OSTI ID:1241220

Genomics of the origin and evolution of Citrus
Journal Article · Wed Jan 31 19:00:00 EST 2018 · Nature (London) · OSTI ID:1543733

Cytogenetics and reproductive behavior of 48-chromosome pearl millet x Pennisetum squamulatum derivatives
Journal Article · · Crop Science; (USA) · OSTI ID:5852640