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Genomic Insights into Date Palm Origins

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Center for Genomics and Systems Biology, New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, UAE
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Khalifa Center for Genetic Engineering and Biotechnology (KCGEB), United Arab Emirates University, P.O. Box 15551, Al Ain, UAE
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Department of Biology, Center for Genomics and Systems Biology, 12 Waverly Place, New York University, New York, NY 10003, USA
*
Author to whom correspondence should be addressed.
Genes 2018, 9(10), 502; https://doi.org/10.3390/genes9100502
Received: 16 September 2018 / Revised: 3 October 2018 / Accepted: 3 October 2018 / Published: 17 October 2018
(This article belongs to the Special Issue Genomics of Plant Domestication and Crop Evolution)
With the development of next-generation sequencing technology, the amount of date palm (Phoenix dactylifera L.) genomic data has grown rapidly and yielded new insights into this species and its origins. Here, we review advances in understanding of the evolutionary history of the date palm, with a particular emphasis on what has been learned from the analysis of genomic data. We first record current genomic resources available for date palm including genome assemblies and resequencing data. We discuss new insights into its domestication and diversification history based on these improved genomic resources. We further report recent discoveries such as the existence of wild ancestral populations in remote locations of Oman and high differentiation between African and Middle Eastern populations. While genomic data are consistent with the view that domestication took place in the Gulf region, they suggest that the process was more complex involving multiple gene pools and possibly a secondary domestication. Many questions remain unanswered, especially regarding the genetic architecture of domestication and diversification. We provide a road map to future studies that will further clarify the domestication history of this iconic crop. View Full-Text
Keywords: Phoenix dactylifera; domestication; next-generation sequencing; population genetics Phoenix dactylifera; domestication; next-generation sequencing; population genetics
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Gros-Balthazard, M.; Hazzouri, K.M.; Flowers, J.M. Genomic Insights into Date Palm Origins. Genes 2018, 9, 502.

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