Phylogenetic relationships of some economically important cereal plants based on genome characterization using molecular markers

Rabey, Haddad A. El; Alshubaily, Fawzia A.; Al-Otaibi, Kholoud M.

doi:10.1080/00087114.2015.1032612

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…Today, cereals are still important, being the principal crops harvested in the world with more than 2.8 Gt of combined grain production (FAO, 2013 ). Among major cereals, the widespread and closely related wheat ( Triticum aestivum L.) and barley ( Hordeum vulgare L.) represents 31% of global grain yield (El Rabey et al, 2015 ). Cereals are also the major component of human diet worldwide with more than 50% of daily caloric intake, with values exceeding 80% in the poorest countries (Awika, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

Phosphorus Acquisition Efficiency Related to Root Traits: Is Mycorrhizal Symbiosis a Key Factor to Wheat and Barley Cropping?

et al. 2018

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Wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) are major crops cultivated around the world, thus playing a crucial role on human diet. Remarkably, the growing human population requires a significant increase in agricultural production in order to feed everybody. In this context, phosphorus (P) management is a key factor as it is component of organic molecules such as nucleic acids, ATP and phospholipids, and it is the most abundant macronutrient in biomass after nitrogen (N), although being one of the scarcest elements in the lithosphere. In general, P fertilization has low efficiency, as only a fraction of the applied P is acquired by roots, leaving a substantial amount to be accumulated in soil as not readily available P. Breeding for P-efficient cultivars is a relatively low cost alternative and can be done through two mechanisms: i) improving P use efficiency (PUE), and/or ii) P acquisition efficiency (PAE). PUE is related to the internal allocation/mobilization of P, and is usually represented by the amount of P accumulated per biomass. PAE relies on roots ability to acquire P from the soil, and is commonly expressed as the relative difference of P acquired under low and high P availability conditions. In this review, plant adaptations related to improved PAE are described, with emphasis on arbuscular mycorrhizal (AM) symbiosis, which is generally accepted to enhance plant P acquisition. A state of the art (1980–2018) of AM growth responses and P uptake in wheat and barley is made to discuss about the commonly accepted growth promoting effect and P increased uptake by AM fungi and the contrasting evidence about the generally accepted lack of positive responses in both plant species. Finally, the mechanisms by which AM symbiosis can affect wheat and barley PAE are discussed, highlighting the importance of considering AM functional diversity on future studies and the necessity to improve PAE definition by considering the carbon trading between all the directly related PAE traits and its return to the host plant.

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Section: Introductionmentioning

confidence: 99%

Phosphorus Acquisition Efficiency Related to Root Traits: Is Mycorrhizal Symbiosis a Key Factor to Wheat and Barley Cropping?

et al. 2018

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“…The ISSR primers used in the above studies are useful to provide reproducible results for genetic discrimination, sex identification, plant propagation and commercial cultivation. El Rabey et al (2015) analyzed 14 cereal germplasms belonging to five cereal species (rice, wheat, barley, sorghum, and maize) using polymerase chain reaction (PCR). Here, 10 ISSR primers and 15 random RAPD primers were utilized as genetic markers in order to analyze the phylogenetic relationships between their genomes.…”

Section: Standard Molecular and Genomic Techniques In Plant Biodiversmentioning

confidence: 99%

The Promise of Molecular and Genomic Techniques for Biodiversity Research and DNA Barcoding of the Arabian Peninsula Flora

et al. 2019

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The Arabian Peninsula is known to have a comprehensive and rich endowment of unique and genetically diverse plant genetic resources. Analysis and conservation of biological diversity is a crucial issue to the whole Arabian Peninsula. The rapid and accurate delimitation and identification of a species is crucial to genetic diversity analysis and the first critical step in the assessment of distribution, population abundance and threats related to a particular target species. During the last two decades, classical strategies of evaluating genetic variability, such as morphology and physiology, have been greatly complemented by phylogenetic, taxonomic, genetic diversity and breeding research molecular studies. At present, initiatives are taking place around the world to generate DNA barcode libraries for vascular plant flora and to make these data available in order to better understand, conserve and utilize biodiversity. The number of herbarium collection-based plant evolutionary genetics and genomics studies being conducted has been increasing worldwide. The herbaria provide a rich resource of already preserved and identified material, and these as well as freshly collected samples from the wild can be used for creating a reference DNA barcode library for the vascular plant flora of a region. This review discusses the main molecular and genomic techniques used in plant identification and biodiversity analysis. Hence, we highlight studies emphasizing various molecular techniques undertaken during the last 10 years to study the plant biodiversity of the Arabian Peninsula. Special emphasis on the role of DNA barcoding as a powerful tool for plant biodiversity analysis is provided, along with the crucial role of herbaria in creating a DNA barcode library.

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“…DNA based markers (like RAPD, ISSR, SSR, AFLP, etc.) having high polymorphic character allow amplification of particular sequence within the plant genome for evaluation of genetic variability (19)(20)(21)(22) to understand the phylogenetic and genetic relationship (23)(24)(25)(26). Literature survey revealed that these genetic markers have advantages as well as disadvantages in assessing the diversity index (20,27).…”

Section: Introductionmentioning

confidence: 99%

Assessment of genetic diversity in five populations of Solanum torvum Swartz. from Tripura using SSR and RAPD markers

2020

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Polymerase Chain reaction (PCR) based molecular characterization has been undertaken for assessing the genetic diversity in five populations of Solanum torvum using SSR and RAPD markers. In this study, 8 SSRs produced 151 fragments of which 131 bands were polymorphic (86.38%). The primers, At5 amplified the highest number of polymorphic loci (27) and the highest PIC was recorded in CBT08 (0.54). In comparison, RAPD assay produced 70 bands with 79.16% polymorphism. The PIC value was highest in OPC14 (0.41). UPGMA clustering for SSR and RAPD markers grouped all the populations into two clusters. Our findings on SSR profile suggests that though different populations of S. torvum are inherited from a common ancestor eventually the population (STP5) with greater genetic diversity is stabilized in the high altitude of Sub - Himalayan region of Tripura in the due course of evolution.

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Phylogenetic relationships of some economically important cereal plants based on genome characterization using molecular markers

Cited by 4 publications

References 33 publications

Phosphorus Acquisition Efficiency Related to Root Traits: Is Mycorrhizal Symbiosis a Key Factor to Wheat and Barley Cropping?

Phosphorus Acquisition Efficiency Related to Root Traits: Is Mycorrhizal Symbiosis a Key Factor to Wheat and Barley Cropping?

The Promise of Molecular and Genomic Techniques for Biodiversity Research and DNA Barcoding of the Arabian Peninsula Flora

Assessment of genetic diversity in five populations of Solanum torvum Swartz. from Tripura using SSR and RAPD markers

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