Morphological, phytochemical and genetic diversity of threatened Polygonatum verticillatum (L.) All. populations of different altitudes and habitat types in Himalayan region

The aim of this study was to determine of the evolutionary relationships of the TurkishDolichopodaspecies, and to define and clarify the systematics of the group in Anatolia. For this purpose, we have examined some 27 populations of the genusDolichopodafrom Anatolia and adjacent regions (Caucasia and the Greek islands). A total of 532 bp of the mitochondrial 16S rDNA gene was sequenced in order to clarify the phylogenetic relationships of the genus. Five main clades can be distinguished and well-supported by phylogenetic analyses. In these clades, the results obtained from Samos Island and Anatolia are remarkable. In contrast to some previous studies, our results point to an Aegean origin of the AnatolianDolichopodaspecies. According to the mitochondrial 16S rDNA divergence data, the current distribution of the genetic diversity was affected by ancient central lake system, habitat types, Messinian period and Plio-Pleistocene characterized by alternating dry/cold and warm/humid stages.

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Genetic diversity and population structure analysis of wild Malus genotypes including the crabapples (M. baccata (L.) Borkh. & M. sikkimensis (Wenzig) Koehne ex C. Schneider) collected from the Indian Himalayan region using microsatellite markers

Genetic Resources and Crop Evolution ◽

10.1007/s10722-019-00780-y ◽

2019 ◽

Vol 66 (6) ◽

pp. 1311-1326

Author(s):

Chavlesh Kumar ◽

Sanjay K. Singh ◽

Rakesh Singh ◽

Kallol K. Pramanick ◽

Mahendra K. Verma ◽

...

Keyword(s):

Genetic Diversity ◽

Population Structure ◽

Microsatellite Markers ◽

Structure Analysis ◽

Himalayan Region ◽

Indian Himalayan Region ◽

Population Structure Analysis

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Genetic diversity of Picea likiangensis natural population at different altitudes revealed by EST-SSR markers

Silvae Genetica ◽

10.1515/sg-2014-0025 ◽

2014 ◽

Vol 63 (1-6) ◽

pp. 191-197 ◽

Cited By ~ 1

Author(s):

X. Cheng ◽

Y. Jiang ◽

T. Tang ◽

G. Fan ◽

Xiaoxia Huang

Keyword(s):

Genetic Diversity ◽

Gene Flow ◽

Ssr Markers ◽

Gene Diversity ◽

Population Level ◽

High Elevation ◽

Species Level ◽

High Genetic Diversity ◽

Elevation Gradients ◽

Different Altitudes

AbstractAltitude is thought to have greatly influenced current species distribution and their genetic diversity. However, it is unclear how different altitudes have affected the distribution and genetic diversity of Picea likiangensis, a dominant forestry species in the Qinghai-Tibetan Plateau region (QTP). In this study, we investigated the genetic diversity of Picea likiangensis populations which distributed in different altitudes of QTP using EST-SSR markers. The results suggested that this species has high genetic diversity at species level, with 100% of loci being polymorphic and an average Nei’s gene diversity (He) of 0.7186 and Shannon’s information index (I) of 1.5415. While the genetic diversity of Picea likiangensis at population level was lower than that at species level, with He and I being 0.6562 and 1.3742, respectively. The variation in genetic diversity of all four studied populations indicated a low-high-low pattern along the elevation gradients. The mid-elevation population (3050 m) was more genetically diverse than both low-elevation (2900 m) and high-elevation populations (3200 m and 3350 m). Nei’s genetic diversity (Fst= 0.0809) and AMOVA analysis (Phist = 0.1135) indicated that a low level of genetic differentiation among populations. Gene flow among populations was 2.8384, suggesting that high gene flow is a main factor leading to high levels of the genetic diversity among populations.

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Genetic diversity of two annual Salsola species (Chenopodiaceae) among habitat types in desert plant communities

Biologia ◽

10.1515/biolog-2017-0032 ◽

2017 ◽

Vol 72 (3) ◽

Cited By ~ 1

Author(s):

Elena Shuyskaya ◽

Kristina Toderich ◽

Liliya Gismatullina ◽

Toshpulot Rajabov ◽

Sergey Khohlov

Keyword(s):

Genetic Diversity ◽

Population Structure ◽

Habitat Restoration ◽

Desert Plant ◽

Habitat Types ◽

Allozyme Diversity ◽

Desert Annual ◽

Annual Plant Species ◽

The Impact ◽

Degraded Pastures

AbstractDesert annual plant species are valuable pasture forage and sources for restoration of degraded pastures. Examining the impact of environmental stresses on genetic diversity and population structure can identify species populations suitable for habitat restoration. We examined allozyme diversity and population structure of two annual species, halo-xerophyte

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Geographic patterns in the genetic diversity of a northern sedge, Carex rariflora

Canadian Journal of Botany ◽

10.1139/b98-185 ◽

1999 ◽

Vol 77 (2) ◽

pp. 269-278 ◽

Cited By ~ 3

Author(s):

Mark Vellend ◽

Marcia J Waterway

Keyword(s):

Genetic Diversity ◽

Geographic Distance ◽

Detrended Correspondence Analysis ◽

Allozyme Variation ◽

Glacial Refugium ◽

Strong Positive Correlation ◽

Habitat Types ◽

Low Genetic Diversity ◽

Habitat Differences ◽

Geographic Regions

We compared the genetic diversity of a northern wetland sedge, Carex rariflora, both within and between populations, in different habitat types, and across geographic regions with different glacial histories. Twelve populations were sampled: 5 from each of two regions in northern Quebec, and 2 from northern Yukon. Habitat types were medium to rich fens, wet tidal flat, and alpine stream edge. Allele frequency data revealed a low degree of within-population genetic diversity (HS = 0.07) and a high degree of genetic differentiation among populations (GST = 0.47) compared with previously studied northern wetland Carex species. Higher genetic variability found in the Yukon than in Quebec could be explained by the presence of a glacial refugium in much of Alaska and the Yukon throughout the Pleistocene. Low genetic diversity in Quebec suggests the occurrence of genetic bottlenecks resulting from founder effects during postglacial colonization. There was a strong positive correlation between geographic distance and genetic distance among populations, and the three geographic regions were genetically distinct from one another. Detrended correspondence analysis of vegetation data revealed clear differences among the three habitat types, but we found no significant correlation between habitat differences and genetic distance.Key words: allozyme variation, genetic diversity, geographic variation, Carex rariflora.

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