干旱区生态环境知识资源中心(Arid): Cross-species hybridization and the origin of North African date palms

Arid

DOI	10.1073/pnas.1817453116
	Cross-species hybridization and the origin of North African date palms
	Flowers, Jonathan M.1,2; Hazzouri, Khaled M.1,3; Gros-Balthazard, Muriel 1; Mo, Ziyi 1; Koutroumpa, Konstantina 4; Perrakis, Andreas 5; Ferrand, Sylvie 1; Khierallah, Hussam S. M.6; Fuller, Dorian Q.7; Aberlenc, Frederique 8; Fournaraki, Christini 5; Purugganan, Michael D.1,2
通讯作者	Purugganan, Michael D.
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN	0027-8424
出版年	2019
卷号	116 期号:5 页码:1651-1658
英文摘要	Date palm (Phoenix dactylifera L.) is a major fruit crop of arid regions that were domesticated similar to 7,000 y ago in the Near or Middle East. This species is cultivated widely in the Middle East and North Africa, and previous population genetic studies have shown genetic differentiation between these regions. We investigated the evolutionary history of P. dactylifera and its wild relatives by resequencing the genomes of date palm varieties and five of its closest relatives. Our results indicate that the North African population has mixed ancestry with components from Middle Eastern P. dactylifera and Phoenix theophrasti, a wild relative endemic to the Eastern Mediterranean. Introgressive hybridization is supported by tests of admixture, reduced subdivision between North African date palm and P. theophrasti, sharing of haplotypes in introgressed regions, and a population model that incorporates gene flow between these populations. Analysis of ancestry proportions indicates that as much as 18% of the genome of North African varieties can be traced to P. theophrasti and a large percentage of loci in this population are segregating for single-nucleotide polymorphisms (SNPs) that are fixed in P. theophrasti and absent from date palm in the Middle East. We present a survey of Phoenix remains in the archaeobotanical record which supports a late arrival of date palm to North Africa. Our results suggest that hybridization with P. theophrasti was of central importance in the diversification history of the cultivated date palm.
英文关键词	introgression archaeobotany domestication crop wild relative range expansion
类型	Article
语种	英语
国家	U Arab Emirates ; USA ; Switzerland ; Greece ; Iraq ; England ; France
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000456944600034
WOS关键词	PHOENIX-DACTYLIFERA ; PHYLOGENETIC ANALYSIS ; GENETIC-STRUCTURE ; HISTORY ; ADMIXTURE ; CULTIVATION ; BEGINNINGS ; EVOLUTION ; REVEALS ; CLIMATE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
来源机构	French National Research Institute for Sustainable Development ; University of London
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218170
作者单位	1.New York Univ Abu Dhabi, Res Inst, Ctr Genom & Syst Biol, Abu Dhabi, U Arab Emirates; 2.NYU, Ctr Genom & Syst Biol, 550 1St Ave, New York, NY 10003 USA; 3.United Arab Emirates Univ, Khalifa Ctr Genet Engn & Biotechnol, Al Ain, U Arab Emirates; 4.Univ Zurich, Dept Systemat & Evolutionary Bot, CH-8008 Zurich, Switzerland; 5.Mediterranean Agron Inst Chania, Mediterranean Plant Conservat Unit, Int Ctr Adv Mediterranean Agron Studies CIHEAM, Khania 73100, Crete, Greece; 6.Univ Baghdad, Coll Agr, Date Palm Res Unit, Baghdad 10071, Iraq; 7.UCL, Inst Archaeol, London WC1H 0PY, England; 8.Inst Rech Dev, UMR, Divers Adaptat & Dev Plants DIADE, F-34394 Montpellier, France
推荐引用方式 GB/T 7714	Flowers, Jonathan M.,Hazzouri, Khaled M.,Gros-Balthazard, Muriel,et al. Cross-species hybridization and the origin of North African date palms[J]. French National Research Institute for Sustainable Development, University of London,2019,116(5):1651-1658.
APA	Flowers, Jonathan M..,Hazzouri, Khaled M..,Gros-Balthazard, Muriel.,Mo, Ziyi.,Koutroumpa, Konstantina.,...&Purugganan, Michael D..(2019).Cross-species hybridization and the origin of North African date palms.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(5),1651-1658.
MLA	Flowers, Jonathan M.,et al."Cross-species hybridization and the origin of North African date palms".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.5(2019):1651-1658.