Distribution and ecological diversity of Aegilops L. in the Greater and Lesser Caucasus Regions of Azerbaijan

Eldarov, Mahammad; Aminov, N. Kh.; Slageren, Michiel van

doi:10.1007/s10722-014-0151-0

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…umbellulata , first reported by Zhukovsky (1928), is a self-pollinated annual grass species that grows primarily in the subtropical ecosphere. It is distributed more prominently in Turkey but has also spread to other West Asian countries along the Fertile Crescent, including Iraq, Lebanon, Iran (West), Syria (North); and Caucasus region – Azerbaijan and Armenia 3,4 . Despite its narrow geographical distribution, Ae.…”

Section: Mainmentioning

confidence: 99%

Genomes ofAegilops umbellulataprovide new insights into unique structural variations and genetic diversity in the U-genome for wheat improvement

Singh,

Gudi,

Maughan

et al. 2024

Preprint

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Aegilops spp. serve as an important reservoir for novel sources of resistance or tolerance to biotic and abiotic stresses. To harness this reservoir, we have generated a high-quality chromosome-level genome assembly of an Ae. umbellulata accession PI 554389 using a combination of PacBio HiFi, Oxford nanopore, and chromosome conformation capture (Hi-C) sequencing technologies and resequenced 20 Ae. umbellulata genomes using Illumina sequencing. We assembled a 4.20 Gb genome spanned over seven chromosomes, rich in repetitive elements (~84%), achieving a QV of 59.54 with 98.14% completeness. The phylogenetic analysis places the U-genome with D-lineage, but major and distinct rearrangements were revealed in the U-genome. Unique transposon landscape of diploid U-genome and complex chromosomal rearrangements, most prominently in 4U and 6U chromosomes uncovered a distinct evolutionary trajectory of Ae. umbellulata. Additionally, the resequencing of geographically and morphologically diverse Ae. umbellulata accessions revealed three distinctive evolutionary sub-populations. Resequencing also identified six new haplotypes for Lr9, the first leaf rust resistance gene introgressed and cloned from Ae. umbellulata. These genomics resources along with high levels of resistance in the resequenced accessions against five devastating wheat diseases affirmed the genetic potential of Ae. umbellulata for wheat improvement.

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Section: Mainmentioning

confidence: 99%

Genomes ofAegilops umbellulataprovide new insights into unique structural variations and genetic diversity in the U-genome for wheat improvement

Singh,

Gudi,

Maughan

et al. 2024

Preprint

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“…columnaris was first collected on the Ghalat plateau close to Ankara and on the slopes of Dizgurt-Dagh mountains, Turkey, by the Russian botanist P.M. Zhukovsky during expeditions of 1925–1927 to Asia Minor [ 5 ]. Since then, this species was found in other locations, mainly in Turkey, Syria, and Transcaucasia, but also in Lebanon, Iraq, Iran, and Aegean Greece (Rodos, Crete) [ 1 , 6 , 7 ]. Ae.…”

Section: Introductionmentioning

confidence: 99%

Chromosome and Molecular Analyses Reveal Significant Karyotype Diversity and Provide New Evidence on the Origin of Aegilops columnaris

Бадаева

Chikida

Fisenko

et al. 2021

Plants

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Aegilops columnaris Zhuk. is tetraploid grass species (2n = 4x = 28, UcUcXcXc) closely related to Ae. neglecta and growing in Western Asia and a western part of the Fertile Crescent. Genetic diversity of Ae. columnaris was assessed using C-banding, FISH, nuclear and chloroplast (cp) DNA analyses, and gliadin electrophoresis. Cytogenetically Ae. columnaris was subdivided into two groups, C-I and C-II, showing different karyotype structure, C-banding, and FISH patterns. C-I group was more similar to Ae. neglecta. All types of markers revealed significant heterogeneity in C-II group, although group C-I was also polymorphic. Two chromosomal groups were consistent with plastogroups identified in a current study based on sequencing of three chloroplast intergenic spacer regions. The similarity of group C-I of Ae. columnaris with Ae. neglecta and their distinctness from C-II indicate that divergence of the C-I group was associated with minor genome modifications. Group C-II could emerge from C-I relatively recently, probably due to introgression from another Aegilops species followed by a reorganization of the parental genomes. Most C-II accessions were collected from a very narrow geographic region, and they might originate from a common ancestor. We suggest that the C-II group is at the initial stage of species divergence and undergoing an extensive speciation process.

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“…in J.Fraser) Maire et Weiller from Azerbaijan (van Slageren, 1994) they have not been relocated in at least 50 years. (Eldarov et al, 2015).…”

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confidence: 99%

Diversity of the Triticeae genetic resources in the Karabakh region of Azerbaijan

Mehdiyeva¹,

Eldarov²,

Sharifova³

et al. 2021

jlsb

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This paper gives an overview of the collection history for the species from the Triticeae Dum. tribe in the Karabakh region of Azerbaijan up to date of its occupation. By covering most of the Lesser Caucasus with the semi-desert and dry steppe climate, the Karabakh region of Azerbaijan has favorable conditions for grass diversity. There are 14 genera from the tribe Triticeae in Azerbaijan, of which historically the 10 genera also were found in the Karabakh region. The data in this article have been presented as a summary of information recorded in different literature sources, that would be useful for the planned monitoring of status, distribution, and preserving issues for the Triticeae species in the liberated areas.

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Distribution and ecological diversity of Aegilops L. in the Greater and Lesser Caucasus Regions of Azerbaijan

Cited by 7 publications

References 5 publications

Genomes ofAegilops umbellulataprovide new insights into unique structural variations and genetic diversity in the U-genome for wheat improvement

Genomes ofAegilops umbellulataprovide new insights into unique structural variations and genetic diversity in the U-genome for wheat improvement

Chromosome and Molecular Analyses Reveal Significant Karyotype Diversity and Provide New Evidence on the Origin of Aegilops columnaris

Diversity of the Triticeae genetic resources in the Karabakh region of Azerbaijan

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