Genetic variability in selected date palm (Phoenix dactylifera L.) cultivars of United Arab Emirates using ISSR and DAMD markers

Fayas, T.P.; Robert, Gabriel Amalan; Gothandam, Kodiveri Muthukaliannan; Kurup, Shyam S.; Subramaniam, Sreeramanan; Cheruth, Abdul Jaleel

doi:10.1007/s13205-018-1108-3

Cited by 22 publications

(22 citation statements)

References 24 publications

(24 reference statements)

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“…The results revealed that Naghal is closer to Aseel compared to Khalas and Khanezi. Most of the previous studies concerning the phylogenetic analysis of date palm cultivar used SSR, RAPD (random amplified polymorphic DNA) and DAMD (directed amplification of minisatellites DNA) markers to understand the genetic discrimination [ 81 – 83 ]. Akhtar et al [ 84 ] showed rps14 for understanding the phylogenetic relationship among Pathri, Dhaddy, Makhi, Aseel, and Khudrawi date palm cultivars from Pakistan.…”

Section: Resultsmentioning

confidence: 99%

First chloroplast genomics study of Phoenix dactylifera (var. Naghal and Khanezi): A comparative analysis

et al. 2018

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Date palm (Phoenix dactylifera L.) is one of the oldest fruit crops in the arid regions of the Middle East. However, little information is available regarding its plastid genomes. In this study, we sequenced the chloroplast (cp) genomes of two economically important but genomically unexplored date palm cultivars of Phoenix dactylifera (var. Naghal and Khanezi). The data assembly and genome annotation revealed a typical quadripartite structure similar to Arecaceae, and the genome sizes of Naghal and Khanezi were 158,210 bp and 158,211 bp, respectively. Structurally, both cp genomes were comprised of four regions: a pair of inverted repeats (27,273 bp for Khanezi and for Naghal 27,272 bp), a large single-copy region (86,090 bp and 86,092 bp) and a small single-copy region (17,575 bp and 17,574 bp). Both genomes had 138 representative genes, whereas 227 and 229 randomly distributed microsatellites were also observed in Khanezi and Naghal, respectively. Phylogenetic analysis based on the whole cp genomes and 68 shared genes showed identical phylogenetic trees of Khanezi and Naghal forming clades with Khalas and Aseel cultivars, respectively. The current study showed detailed comparative cp genome analysis, which could be essential for broader population genetics and molecular studies of these four date palm cultivars.

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Section: Resultsmentioning

confidence: 99%

First chloroplast genomics study of Phoenix dactylifera (var. Naghal and Khanezi): A comparative analysis

et al. 2018

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“…The date palm tree fronds (DPF) is a an agro-waste product of date fruit during pruning, which is widely distributed in hot arid regions in an oasis agro-system of Middle East Asia, North Africa and North American desert regions [16]. The date palm (Phoenix dactylifera L.) is a monocotyledonous and dioecious species from Areaceae family [17]. It is a renewable and abundant material and its annual worldwide production is estimated to be 1.13 million of date palm fiber tons, over 1 200,000 tons of petioles, 410,000 tons of leaves and 300,000 tons of bunches [18].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Delignification Process on the Physicochemical Properties and Thermal Stability of Microcrystalline Cellulose Extracted from Date Palm Fronds

Beroual

Trache

Mehelli

et al. 2020

Waste Biomass Valor

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In this study, pure cellulose was isolated from Algerian date palm fronds (DPF) using three different delignification processes (acidified NaClO 2 , totally chlorine free (TCF) and their combination). Then, microcrystalline cellulose (MCCs) particles have been successfully produced via direct acid hydrolysis of the different celluloses. All samples were characterized using infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry (TGA) and differential scanning calorimeter (DSC). From the FTIR analysis, most of hemicellulose and lignin were effectively removed throughout the extraction processes. The XRD spectra revealed that all MCCs belong to cellulose I type, and showed a highly crystallinity index than that of pure celluloses. According to DSC and TGA/DTG analyses, the MCC samples presented a higher decomposition temperature. The obtained results showed that the extracted MCC samples exhibited similar properties than those of commercial MCC. Furthermore, the employment of a combined process allowed obtaining MCC with higher crystallinity and better thermal stability. Thus, according to these results, date palm fronds can be considered as a potential low-cost material for MCC production and the combined process is promising to isolate high purity MCC from cellulosic substrate.

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“…In the present investigation, three introduced varieties and five local landraces of Phoenix dactylifera L. were analyzed for polymorphism based on ISSR analysis. This technique has been already exploited to detect polymorphic differences between different date palm varieties [34][35][36][46][47][48][49][50][51][52]. For the present investigation sample was taken from five local landraces and three introduced varieties to characterize and assess the genetic variation by using 21 ISSR primers.…”

Section: Genetic Distance Within Local Landracesmentioning

confidence: 99%

“…Several studies using ISSR, in combination with other markers showed polymorphism between 73% to 85.45 percentage of polymorphism [33][34][35][36]. There were no documented reports on molecular studies, description and variability of date palm landraces of Afar region from Ethiopia [12,37].…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization of some landraces and varieties of Date palm (Phoenix dactylifera L.) from Afar region of Ethiopia using ISSR markers

Indracanti

Mekonnen

Tsegaw

2019

Preprint

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Back ground Date palm (Phoenix dactylifera L.) is one of the oldest fruit trees in hot arid region of the world including North Africa. In some areas of Afar region of Ethiopia, date palm grow as landraces, are in danger due to introduction of improved cultivars. Present study was carried out to fill knowledge gap about molecular diversity of this crop in Afar region. Molecular studies of 5 landraces and 3 introduced cultivars of date palm from Afar region of Ethiopia were tested using 21 randomly selected ISSR primers for amplification and polymorphism detection using genomic DNA. ISSR markers across 8 date palm varieties were scored for their presence (1) or absence (0). Shannon's Information index (I) and polymorphic information content (PIC) were analyzed by popGENE 32 and online PIC calculator respectively. Results 17 out of 21 ISSR markers used for this study produced a total of 557 scorable DNA fragments with average of 33.52 per marker and 61.68, 43.93 and 68.22% polymorphism were obtained within local landraces, introduced varieties and among all samples respectively. The genetic distance among all samples ranged from 0.1402 to 0.5953; and the dendrogram separated date palm varieties into seven clusters. ISSR markers used for this study have high discrimination power and the average values of Shannon's information index and PIC were 0.318 and 0.76 respectively. Conclusion Genetic diversity was observed among all date palms studied in this investigation. To have better understanding on genetic diversity of date palm in the Afar region, further research should be done using SNP markers and landraces should be registered.

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Genetic variability in selected date palm (Phoenix dactylifera L.) cultivars of United Arab Emirates using ISSR and DAMD markers

Cited by 22 publications

References 24 publications

First chloroplast genomics study of Phoenix dactylifera (var. Naghal and Khanezi): A comparative analysis

First chloroplast genomics study of Phoenix dactylifera (var. Naghal and Khanezi): A comparative analysis

Effect of the Delignification Process on the Physicochemical Properties and Thermal Stability of Microcrystalline Cellulose Extracted from Date Palm Fronds

Molecular characterization of some landraces and varieties of Date palm (Phoenix dactylifera L.) from Afar region of Ethiopia using ISSR markers

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