Karyological study and meiotic analysis of four species of<i>Aegilops</i>(Poaceae) in Algeria

Baik, Nourdine; Maamri, Fatma; Bandou, H.

doi:10.1080/00087114.2017.1387340

Cited by 5 publications

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References 49 publications

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“…The repetitive DNA sequence (pSc119.2) revealed intraspecific differentiation of four species sampled at high altitudes, at low altitudes, and in the arid area by doubling and/or loss of some loci. This result agrees with those found by karyological analysis which showed that chromosome size varies significantly between the samples of these populations (Baik et al, 2017). Hence, these changes in the size and morphology of chromosomes have beneficial consequences on the evolutionary process and adaptation of species to eco-geographical conditions (Gorenflot, Raicu, 1980;Levin, 2002).…”

Section: Discussionsupporting

confidence: 89%

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2021

Ukr. Bot. J.

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New records of four species of the genus Lepiota (Agaricales, Basidiomycota) are reported from Ukraine. Three species, L. fuscovinacea, L. griseovirens, and L. roseolivida, are recorded in Ukraine for the first time, whereas a poorly known species, L. subalba, earlier known in Ukraine from a few records, is confirmed using molecular identification methods. All species reports are supplemented with original descriptions and drawings based on newly collected material, as well as data on general distribution, habitat, references to new collections and public databases. Original nucleotide sequence of the ITS region of ribosomal DNA obtained from our voucher specimen of L. subalba is provided.

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Section: Discussionsupporting

confidence: 89%

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2021

Ukr. Bot. J.

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Section: Discussionsupporting

confidence: 89%

Genetic diversity of ribosomal loci (5S and 45S rDNA) and pSc119.2 repetitive DNA sequence among four species of Aegilops (Poaceae) from Algeria

Baik¹,

Bandou²,

Garcia³

et al. 2021

Ukr. Bot. J.

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In continuation of our previous research we carried out the karyological investigation of 53 populations of four Aegilops species (A. geniculata, A. triuncialis, A. ventricosa, and A. neglecta) sampled in different eco-geographical habitats in Algeria. The genetic variability of the chromosomal DNA loci of the same collection of Aegilops is highlighted by the Fluorescence In Situ Hybridization technique (FISH) using three probes: 5S rDNA, 45S rDNA, and repetitive DNA (pSc119.2). We found that the two rDNA loci (5S and 45S) hybridized with some chromosomes and showed a large genetic polymorphism within and between the four Aegilops species, while the repetitive DNA sequences (pSc119.2) hybridized with all chromosomes and differentiated the populations of the mountains with a humid bioclimate from the populations of the steppe regions with an arid bioclimate. However, the transposition of the physical maps of the studied loci (5S rDNA, 45S rDNA, and pSc119.2) with those of other collections revealed the existence of new loci in Aegilops from Algeria.

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Aegilops L.

Feldman,

Levy

2023

Wheat Evolution and Domestication

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This chapter discusses the classification of the genus Aegilops, and presents a detailed description of its sections and species. It shows the morphology, geographical distribution, ecological affinities, cytology, and cytogenetic aspects of the species. Similarly, the structure and distribution of repetitious DNA in the various species, evolution of the diploid and genome analyses of the allopolyploid species, and relationships between them and to species of Triticum, are presented. The occurrence of gametocidal (GC) genes in species of Aegilops, their mode of action, evolutionary significance, and use in the production of deletion and dissection bread wheat lines, are also being reviewed.

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Karyological study and meiotic analysis of four species ofAegilops(Poaceae) in Algeria

Abstract: a a laboratoire de Biologie et Physiologie des organismes (lBPo), faculté des sciences Biologiques, université des sciences et de la technologie Houari Boumediene (ustHB), alger, algeria; b institut national de la recherche agronomique d'algérie (inraa), alger, algeria

Cited by 5 publications

References 49 publications

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Genetic diversity of ribosomal loci (5S and 45S rDNA) and pSc119.2 repetitive DNA sequence among four species of Aegilops (Poaceae) from Algeria

Aegilops L.

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