An overview on cytogenetics of the genus<i>Astragalus</i>subgenus<i>Hypoglottis</i>(Fabaceae)

Ranjbar, Massoud; Mahmoudian, Bahareh

doi:10.1080/00087114.2015.1032571

Cited by 6 publications

(5 citation statements)

References 45 publications

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“…According to our analysis with relatively few species, rDNA ITS sequences were used to identify phylogenetic connections for about 200 Old World Astragalus species [40]. In our study, the most common Astragalus species was A. iranicus, which was discovered in four regions of elevated areas ranging from 1580 to 1799 m. In comparison to our discovery, Ranjbar and Mahmoudian [41] discovered three distinct A. iranicus at altitudes of 1580-1799 m, indicating the evolutionary process of Astragalus species in our neighbouring area.…”

Section: Discussionmentioning

confidence: 67%

Molecular Variation in Some Taxa of Genus Astragalus L. (Fabaceae) in the Iraqi Kurdistan Region

Khal,

Tahir,

Abdul-Razaq

2023

Horticulturae

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Astragalus L. is one of the main genera of blossoming plants, and its diversity of species and forms is well known. The Astragalus L. taxa make a significant contribution to the mountainous and steppe ecosystems of the Kurdistan region of Iraq. Although the species within this genus have been the subject of several molecular studies, the evolutionary relationships among these species remain unidentified. Despite extensive research, little is known about the phylogenetic relationships among the various subgenera of Astragalus. This research is intended to investigate the molecular variation of 33 species of the genus Astragalus L. found in the Kurdistan area of Iraq. For molecular validations, three separate techniques (nuclear ribosomal DNA (rDNA), inter simple sequence repeats (ISSR), and conserved DNA-derived polymorphism (CDDP)) were used. With respect to Astragalus L. indentations, universal ITS1 and ITS4 gene sequencing was used, and the discovered sequences were subjected to BLAST searches in the NCBI database. A phylogenetic tree was generated with two main clades. Regarding detecting genetic diversity between the taxa, 24 molecular markers (14 ISSR and 10 CDDP) were used. High values of polymorphic materials and gene diversity were detected. ISSR markers had an average of 22.71 polymorphic bands per primer, while CDDP markers had the highest mean values for polymorphic information content (0.37), Shannon’s information index (0.27), expected heterozygosity (0.19), and unbiased expected heterozygosity (0.23). Cluster and principal coordinate analyses divided the Astragalus L. taxa into four main groups using the two molecular data sets. According to the results of the molecular variance analysis, the highest variation was detected within sections, with values of 92.01 and 89.48% for ISSR and CDDP markers, respectively. These outcomes suggest the effectiveness of molecular markers and the ITS region in determining and identifying genetic correlations between Astragalus species.

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Section: Discussionmentioning

confidence: 67%

Molecular Variation in Some Taxa of Genus Astragalus L. (Fabaceae) in the Iraqi Kurdistan Region

Khal,

Tahir,

Abdul-Razaq

2023

Horticulturae

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“…nucleiferus could have significant potential as an anticancer agent in the management of decreasing the amount of cancer cells. The anticancer and growth inhibitory effects of the extracts may be due to the fact that rich secondary metabolites components of the plant as described previously (Block and Mead, 2003;Shao et al, 2004;Ionkova et al, 2014;Ranjbar and Mahmoudian, 2015).…”

Section: Antiproliferative Activity Resultsmentioning

confidence: 85%

İnsan Kanser Hücrelerinde Astragalus elongatus subsp. nucleiferus’ un Antikanser, Antiproliferatif ve Laktat Dehidrojenaz Enzim Aktiviteleri

Şekeroğlu

Gezici

Tanriöver

et al. 2019

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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In this study, potential anticancer and antiproliferative activities of ethanol and water extracts from aerial parts and roots of Astragallus elongatus subsp. nucleiferus were evaluated. MTT, trypan blue, and LDH enzyme activity assays were performed to determine cytotoxicity and cell proliferation potentials of the plant extracts against human A549, H1299, C6 cancer cells, and non-tumorous HUVECs. As results of MTT and trypan blue assays, dose-dependent anticancer and antiproliferative effects were observed on tested human lung and brain carcinoma cells. The water extracts obtained from the root exerted higher anticancer activity with IC50 values ranging from 5.81±0.46 to 18.24±0.12µg/mL than the extracts of aerial parts. In contrary anticancer and cytotoxicity results, the ethanol extract of the root was also caused to the highest apoptosis level in a dose dependently. Regarding LDH activity, the plant extracts obtained from aerial parts and roots were demonstrated the highest LDH activity towards H1299 cells. The obtained results showed that the roots of the plant are able to inhibit cell growth in cancer cells in a time and concentration dependently.

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“…More than 95% of Old World Astragalus species have chromosome numbers of n = 8, 16, 32, 48, 64 or 96, and they commonly are polyploids (Wojciechowski et al 1999;Ranjbar et al, 2010, Tekpinar et al, 2016. In contrast, all South American species and the majority (>95%) of those in North American exhibit an aneuploid series of n =11, 12, 13, 14 or 15 (Ranjbar & Mahmoudian, 2015). However, no notable morphological character supports the distinction between New World and Old World taxa of Astragalus (Dizkirici et al, 2014).…”

Section: Genetic Diversitymentioning

confidence: 90%

Reproductive biology, ecological life history/demography and genetic diversity of the megagenus Astragalus (Fabaceae, Papilionoideae)

et al. 2021

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Astragalus is the largest genus of seed plants; however, information on its reproductive biology and life history is widely scattered in the literature. About 96% of the species are perennials and 4% annuals; many are rare endemics. Astragalus species are obligate or facultative outcrossers, and inbreeding depression is higher in self-compatible (SC) than in self-incompatible (SI) species. The most frequent pollinators are Bombus, Osmia and Anthophora. On average, 48% of ovules produce seeds, and 40% of flowers produce fruits. Seed/ovule and fruit/flower ratios are lower in SC than in SI species. Predispersal insect seed predation ranges from 0 to 93%, and major predators are Acanthoscelides, Bruchophagus and Tychius. Seeds have physical dormancy and typically form a seed bank. C 3 is the only photosynthetic pathway in the genus. Population growth may be cyclic or noncyclic, and genetic diversity of a taxon may or may not be related to size of geographic range.

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An overview on cytogenetics of the genusAstragalussubgenusHypoglottis(Fabaceae)

Cited by 6 publications

References 45 publications

Molecular Variation in Some Taxa of Genus Astragalus L. (Fabaceae) in the Iraqi Kurdistan Region

Molecular Variation in Some Taxa of Genus Astragalus L. (Fabaceae) in the Iraqi Kurdistan Region

İnsan Kanser Hücrelerinde Astragalus elongatus subsp. nucleiferus’ un Antikanser, Antiproliferatif ve Laktat Dehidrojenaz Enzim Aktiviteleri

Reproductive biology, ecological life history/demography and genetic diversity of the megagenus Astragalus (Fabaceae, Papilionoideae)

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