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- Title
De novo genome sequencing and comparative genomics of date palm (Phoenix dactylifera).
- Authors
Al-Dous, Eman K; George, Binu; Al-Mahmoud, Maryam E; Al-Jaber, Moneera Y; Wang, Hao; Salameh, Yasmeen M; Al-Azwani, Eman K; Chaluvadi, Srinivasa; Pontaroli, Ana C; DeBarry, Jeremy; Arondel, Vincent; Ohlrogge, John; Saie, Imad J; Suliman-Elmeer, Khaled M; Bennetzen, Jeffrey L; Kruegger, Robert R; Malek, Joel A
- Abstract
Date palm is one of the most economically important woody crops cultivated in the Middle East and North Africa and is a good candidate for improving agricultural yields in arid environments. Nonetheless, long generation times (5-8 years) and dioecy (separate male and female trees) have complicated its cultivation and genetic analysis. To address these issues, we assembled a draft genome for a Khalas variety female date palm, the first publicly available resource of its type for a member of the order Arecales. The ∼380 Mb sequence, spanning mainly gene-rich regions, includes >25,000 gene models and is predicted to cover ∼90% of genes and ∼60% of the genome. Sequencing of eight other cultivars, including females of the Deglet Noor and Medjool varieties and their backcrossed males, identified >3.5 million polymorphic sites, including >10,000 genic copy number variations. A small subset of these polymorphisms can distinguish multiple varieties. We identified a region of the genome linked to gender and found evidence that date palm employs an XY system of gender inheritance.
- Publication
Nature biotechnology, 2011, Vol 29, Issue 6, p521
- ISSN
1546-1696
- Publication type
Journal Article
- DOI
10.1038/nbt.1860