Genetic diversity and geographic distribution of variation of Hordeum murinum as revealed by retroelement insertional polymorphisms in Iran

Sharifi-Rigi, Parvin; Saeidi, Hojjatollah; Rahiminejad, Mohammad Reza

doi:10.2478/s11756-014-0340-5

Cited by 5 publications

(4 citation statements)

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“…This grouping in the western accessions indicated the existence of three differentiated groups of colonies along the Zagros Mountains in Iran. Previous investigations into genetic diversity of other Poaceae taxa such as wild barley (Khodayari et al , 2014), Hordeum murinum (Sharifi-Rigi et al , 2014), diploid wheats (Naghavi et al , 2009; Mousavifard et al , 2015) and Secale spp. (Akhavan et al , 2010; Jenabi et al , 2011) also showed high variability in germplasms that originated from the Zagros Mountains in the west of Iran.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity ofSorghumhalepense(L.) Pers. in Iran as revealed by IRAP markers

Karimi

Saeidi

2015

Plant Genet. Resour.

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Sorghum halepense grows in a vast range of ecological regions of Iran. In this study, inter-retrotransposon amplified polymorphism (IRAP) markers were used to assess the genetic diversity of 38 accessions of S. halepense and two accessions of Sorghum bicolor (used as out groups) collected from different regions of Iran. In total, 180 DNA fragments were amplified from eight combinations of IRAP primers, from which 178 (98.9%) were polymorphic. The IRAP-based trees and two-dimensional plot of principal coordinate analysis demonstrated six different groups corresponding to their geographical origin in Iranian germplasm of S. halepense: (1) in the south-west region; (2) in the west along the Zagros Mountains; (3) in the north-west of the country; (4) in the centre of the country; (5) and (6) in the northern region along the eastern and western coast of Caspian Sea. The most variable populations were found in the centre and the west of Iran. The results showed high gene flow among different regions, although the south-western accessions were well differentiated from those growing in other regions. The accessions collected from western coast of Caspian Sea were differentiated from neighbouring regions in both morphological characters and IRAP data. The measured genetic distances were independent of geographical distances. This survey demonstrates high genetic dynamism in Iranian germplasm of S. halepense and indicates that the present germplasm is of great value in terms of sampling for new alleles for crop improvement.

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Section: Discussionmentioning

confidence: 99%

Genetic diversity ofSorghumhalepense(L.) Pers. in Iran as revealed by IRAP markers

Karimi

Saeidi

2015

Plant Genet. Resour.

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“…Comparing to the SRAP markers, REMAP markers could be related to the geographical origin of this species. Many studies have reported that retrotransposon-related polymorphism is associated to the evolution events in species (Kalendar et al, 1999;Basirnia et al, 2014) and to their geographical origin (Sharifi-Rigi et al, 2014). Indeed, the REMAP markers used in this study have divided C. scorpioides by their evolutionary rate.…”

Section: Discussionmentioning

confidence: 92%

Genetic diversity, population structuring and expansion history of Coronilla scorpioides

Hakim

Kabtni

Sdouga

et al. 2022

Chil. j. agric. res.

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The Tunisian area flora has a diverse and interesting vegetation cover. To date, many species, however, are not sufficiently explored and properly exploited. Despite their medicinal potential, Coronilla scorpioides (L.) W.D.J. Koch species has still not been studied. In this study, we aim to investigate the genetic diversity and the population structuring of 10 Tunisian populations. Ten DNAs pooled represented the populations of C. scorpioides species are used in this molecular analysis. Bulked segregant analysis (BSA) was used in order to identify a genetic polymorphism associated to a specific trait by comparing DNA pools with contrasting phenotypes by sequence-related amplified polymorphism (SRAP) markers. Moreover, 10 DNA samples for each population were examined by five retrotransposon-microsatellite amplified polymorphism (REMAP) combination in order to elucidate the genetic composition of this species. Our results suggested that C. scorpioides species have a high genetic diversity that can be related to their geographical distribution. This genetic richness could be the source of their agronomic variability in which two contrasted populations originated from Kairouan (P210 and P224) were genetically distinguished by the BSA-SRAP method. The occurrences of evolution were elucidated, and the ancestral populations were revealed. As the first research based on the genetic structuring and diversity of C. scorpioides, our finding illustrates the affluences' biodiversity of Tunisian area and the genetic richness of the studied species. This study could be the genetic guideline of C. scorpioides species that can be used to meet the needs of medicine and the national economy.

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“…Our results show that hare barley displayed not only a remarkable phenotypic plasticity but also a high epigenetic diversity in response to increased temperature, decreased rainfall and the combination of both. Global methylation seems to be widely generalised in the genome of many plant species (Suzuki et al 2008 ), being particularly frequent in species with high presence of transposable elements such as hare barley (Jakob et al 2004 ; Sharifi-Rigi et al 2014 ), and large genomes such as Zea mays (Diez et al 2014 ). Specifically, our study species was found to have the largest genome within the Hordeum genus (Jakob et al 2004 ).…”

Section: Discussionmentioning

confidence: 99%

Epigenetic responses of hare barley (Hordeum murinum subsp. leporinum) to climate change: an experimental, trait-based approach

et al. 2021

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The impact of reduced rainfall and increased temperatures forecasted by climate change models on plant communities will depend on the capacity of plant species to acclimate and adapt to new environmental conditions. The acclimation process is mainly driven by epigenetic regulation, including structural and chemical modifications on the genome that do not affect the nucleotide sequence. In plants, one of the best-known epigenetic mechanisms is cytosine-methylation. We evaluated the impact of 30% reduced rainfall (hereafter “drought” treatment; D), 3 °C increased air temperature (“warming”; W), and the combination of D and W (WD) on the phenotypic and epigenetic variability of Hordeum murinum subsp. leporinum L., a grass species of high relevance in Mediterranean agroforestry systems. A full factorial experiment was set up in a savannah-like ecosystem located in southwestern Spain. H. murinum exhibited a large phenotypic plasticity in response to climatic conditions. Plants subjected to warmer conditions (i.e., W and WD treatments) flowered earlier, and those subjected to combined stress (WD) showed a higher investment in leaf area per unit of leaf mass (i.e., higher SLA) and produced heavier seeds. Our results also indicated that both the level and patterns of methylation varied substantially with the climatic treatments, with the combination of D and W inducing a clearly different epigenetic response compared to that promoted by D and W separately. The main conclusion achieved in this work suggests a potential role of epigenetic regulation of gene expression for the maintenance of homoeostasis and functional stability under future climate change scenarios.

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Genetic diversity and geographic distribution of variation of Hordeum murinum as revealed by retroelement insertional polymorphisms in Iran

Cited by 5 publications

References 45 publications

Genetic diversity ofSorghumhalepense(L.) Pers. in Iran as revealed by IRAP markers

Genetic diversity ofSorghumhalepense(L.) Pers. in Iran as revealed by IRAP markers

Genetic diversity, population structuring and expansion history of Coronilla scorpioides

Epigenetic responses of hare barley (Hordeum murinum subsp. leporinum) to climate change: an experimental, trait-based approach

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