A Population Genetic Study of the Kota in the Nilgiri Hills, South India

1977 ◽  
Vol 27 (4) ◽  
pp. 225-241 ◽  
Author(s):  
A.K. Ghosh ◽  
R.L. Kirk ◽  
S.R. Joshi ◽  
H.M. Bhatia
Keyword(s):  
Genetic Study ◽  
Population Genetic ◽  
South India ◽  
Population Genetic Study

scholarly journals Population genetic structure of a major reef-building coral species Acropora downingi in northeastern Arabian Peninsula

Coral Reefs ◽  
2021 ◽  
Author(s):  
Felipe Torquato ◽  
Jessica Bouwmeester ◽  
Pedro Range ◽  
Alyssa Marshell ◽  
Mark A. Priest ◽  
...  
Keyword(s):  
Population Structure ◽  
Genetic Study ◽  
Persian Gulf ◽  
Population Genetic ◽  
Coral Species ◽  
Arabian Peninsula ◽  
Ecological Speciation ◽  
Population Genetic Study ◽  
Sea Of Oman ◽  
Neutral Markers

AbstractCurrent seawater temperatures around the northeastern Arabian Peninsula resemble future global forecasts as temperatures > 35 °C are commonly observed in summer. To provide a more fundamental aim of understanding the structure of wild populations in extreme environmental conditions, we conducted a population genetic study of a widespread, regional endemic table coral species, Acropora downingi, across the northeastern Arabian Peninsula. A total of 63 samples were collected in the southern Arabian/Persian Gulf (Abu Dhabi and Qatar) and the Sea of Oman (northeastern Oman). Using RAD-seq techniques, we described the population structure of A. downingi across the study area. Pairwise G’st and distance-based analyses using neutral markers displayed two distinct genetic clusters: one represented by Arabian/Persian Gulf individuals, and the other by Sea of Oman individuals. Nevertheless, a model-based method applied to the genetic data suggested a panmictic population encompassing both seas. Hypotheses to explain the distinctiveness of phylogeographic subregions in the northeastern Arabian Peninsula rely on either (1) bottleneck events due to successive mass coral bleaching, (2) recent founder effect, (3) ecological speciation due to the large spatial gradients in physical conditions, or (4) the combination of seascape features, ocean circulation and larval traits. Neutral markers indicated a slightly structured population of A. downingi, which exclude the ecological speciation hypothesis. Future studies across a broader range of organisms are required to furnish evidence for existing hypotheses explaining a population structure observed in the study area. Though this is the most thermally tolerant acroporid species worldwide, A. downingi corals in the Arabian/Persian Gulf have undergone major mortality events over the past three decades. Therefore, the present genetic study has important implications for understanding patterns and processes of differentiation in this group, whose populations may be pushed to extinction as the Arabian/Persian Gulf warms.

Population genetic study and barcoding in Iran saffron (Crocus sativus L.)

2020 ◽  
Vol 143 ◽  
pp. 111915 ◽  
Author(s):  
Mohammad Mohebi Anabat ◽  
Hossein Riahi ◽  
Masoud Sheidai ◽  
Fahimeh Koohdar
Keyword(s):  
Genetic Study ◽  
Population Genetic ◽  
Crocus Sativus ◽  
Population Genetic Study ◽  
Crocus Sativus L

scholarly journals Comparative population genetic study of two oligophagous insects associated with the same hosts

Heredity ◽  
2006 ◽  
Vol 97 (1) ◽  
pp. 38-45 ◽  
Author(s):  
C Kerdelhué ◽  
E Magnoux ◽  
F Lieutier ◽  
A Roques ◽  
J Rousselet
Keyword(s):  
Genetic Study ◽  
Population Genetic ◽  
Population Genetic Study ◽  
Comparative Population

Population genetic study in Juglans regia L. (Persian walnut) and its taxonomic status within the genus Juglans L.

Phytotaxa ◽  
2018 ◽  
Vol 376 (4) ◽  
pp. 154 ◽  
Author(s):  
MEGHDAD MAGHSOODI ◽  
MASOUD SHEIDAI ◽  
FAHIMEH KOOHDAR
Keyword(s):  
Molecular Markers ◽  
Genetic Structure ◽  
Genetic Variability ◽  
Genetic Study ◽  
Population Genetic ◽  
Juglans Regia ◽  
Its Sequences ◽  
Population Genetic Study ◽  
Nrdna Its ◽  
Persian Walnut

Juglans regia commonly known as Persian walnut of the genus Juglans (Juglandaceae) is cultivated throughout the temperate regions of the world for its high quality wood and edible nuts. Though Persian walnut grows on 70,000 ha in Iran, we have no detailed information on genetic structure of walnut cultivars in the country. A detailed knowledge of genetic diversity and spatial genetic structure is essential for conservation and management of tree species. The species like Persian walnut, which has wide range of geographical distribution, should harbor extensive genetic variability to adapt to environmental fluctuations they face. Therefore, detailed population genetic study of local populations become important for conservation and breeding studies. The main aim of the present study was to investigate the population genetic structure of seven Persian walnut populations including 3 wild and 4 cultivated populations by using ISSR and SRAP molecular markers. We also aimed to compare the genetic variability revealed by ISSR neutral multilocus marker and nrDNA ITS sequences. Finally, we tried to investigate the species relationship within the genus Juglans L. by using molecular phylogeny methods based on nrDNA ITS sequences. The results showed that both multilocus molecular markers and ITS sequences can differentiate Persian walnut populations. The studied populations differed genetically and showed isolation by distance (IBD).

A Population-Genetic Study of the DYS385 Haplotypes in Two Spanish Populations and the African Immigrant Population in Spain

2001 ◽  
Vol 46 (1) ◽  
pp. 14941J ◽  
Author(s):  
Joaquín-José Gamero ◽  
Jose-Luis Romero ◽  
Juan-Luis González ◽  
Mónica Carvalho ◽  
María-Joao Anjos ◽  
...  
Keyword(s):  
Genetic Study ◽  
Population Genetic ◽  
Immigrant Population ◽  
Population Genetic Study ◽  
African Immigrant ◽  
Spanish Populations
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