Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 554 (7692), 311-316

Genomics of the Origin and Evolution of Citrus


Genomics of the Origin and Evolution of Citrus

Guohong Albert Wu et al. Nature.


The genus Citrus, comprising some of the most widely cultivated fruit crops worldwide, includes an uncertain number of species. Here we describe ten natural citrus species, using genomic, phylogenetic and biogeographic analyses of 60 accessions representing diverse citrus germ plasms, and propose that citrus diversified during the late Miocene epoch through a rapid southeast Asian radiation that correlates with a marked weakening of the monsoons. A second radiation enabled by migration across the Wallace line gave rise to the Australian limes in the early Pliocene epoch. Further identification and analyses of hybrids and admixed genomes provides insights into the genealogy of major commercial cultivars of citrus. Among mandarins and sweet orange, we find an extensive network of relatedness that illuminates the domestication of these groups. Widespread pummelo admixture among these mandarins and its correlation with fruit size and acidity suggests a plausible role of pummelo introgression in the selection of palatable mandarins. This work provides a new evolutionary framework for the genus Citrus.

Similar articles

See all similar articles

Cited by 34 PubMed Central articles

See all "Cited by" articles


    1. PLoS Genet. 2012;8(5):e1002703 - PubMed
    1. Am J Bot. 2011 Sep;98(9):1389-414 - PubMed
    1. Syst Biol. 2012 May;61(3):539-42 - PubMed
    1. Biol Rev Camb Philos Soc. 2015 Feb;90(1):236-53 - PubMed
    1. Front Genet. 2014 Feb 12;5:4 - PubMed

Publication types

LinkOut - more resources