Population genetics and gene flow of the seagrass, Syringodium isoetifolium based on Start codon targeted (SCoT) marker from Palk Bay and Chilika Lake, India

Meta Gene ◽  
2020 ◽  
Vol 26 ◽  
pp. 100774
Author(s):  
E. Dilipan ◽  
M. Ramachandran ◽  
D. Arulbalachandran
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Start Codon ◽  
Chilika Lake ◽  
Scot Marker ◽  
Palk Bay ◽  
Syringodium Isoetifolium

scholarly journals Population genetics of Southern Hemisphere tope shark (Galeorhinus galeus): Intercontinental divergence and constrained gene flow at different geographical scales

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0184481 ◽  
Author(s):  
Aletta E. Bester-van der Merwe ◽  
Daphne Bitalo ◽  
Juan M. Cuevas ◽  
Jennifer Ovenden ◽  
Sebastián Hernández ◽  
...  
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Southern Hemisphere ◽  
Galeorhinus Galeus

scholarly journals Blue carbon stock of the seagrass meadows of Gulf of Mannar and Palk Bay off Coromandel Coast, south India

2020 ◽  
Vol 67 (4) ◽  
Author(s):  
P. Kaladharan ◽  
P.U. Zacharia ◽  
S. Thirumalaiselvan ◽  
A. Anasukoya ◽  
Lavanya Ratheesh ◽  
...  
Keyword(s):  
Carbon Stock ◽  
South India ◽  
Blue Carbon ◽  
Gulf Of Mannar ◽  
Organic Carbon Content ◽  
Seagrass Meadows ◽  
Soil Carbon Density ◽  
Palk Bay ◽  
Syringodium Isoetifolium ◽  
Coromandel Coast

Blue carbon stock of the seagrass meadows of Gulf of Mannar and Palk Bay, off Coromandel Coast, south India, were computed from the organic carbon content and dry bulk densities of sediment core taken from the seagrass meadows of these two ecosystems. The Gulf of Mannar (GoM) and Palk Bay (PB) harbour 13 seagrass species dominated by Cymodocea serrulata and Syringodium isoetifolium. The soil carbon density of both GoM and PB were higher in subsurface cores. The blue carbon stock of seagrass meadows of the GoM was estimated as 0.001782 Tg and that of PB as 0.043996 Tg. The estimated value of blue carbon stored in seagrass meadows of GoM was 17820 US$ and that of PB was 43,99,682 US$. The results of this study are discussed in the light of climate change mitigation, emphasising the need to conserve these underwater meadows.

scholarly journals Molecular markers applying in forest trees gene pool conservation

2009 ◽  
pp. 101-113
Author(s):  
Jelena Milovanovic ◽  
Mirjana Sijacic-Nikolic
Keyword(s):  
Population Genetics ◽  
Molecular Markers ◽  
Gene Flow ◽  
Gene Pool ◽  
Statistical Power ◽  
Forest Trees ◽  
Effective Population ◽  
Migration Patterns ◽  
Geographic Diversity ◽  
Marker Loci

Many studies performed during the last years demonstrated the usefulness of neutral molecular markers in the field of conservation and population genetics of forest trees, in particular to understand the importance of migration patterns in shaping current genetic and geographic diversity and to measure important parameters such as effective population size, gene flow and past bottleneck. During the next years, a large amount of data at marker loci or at sequence level is expected to be collected, and to become excellent statistical power for the assessment of biological and evolutionary value.

Population Genetics and Gene Flow of the Common Tern

The Condor ◽  
1990 ◽  
Vol 92 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Sherman L. Burson
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Common Tern ◽  
The Common

Isolation and characterisation via 454 sequencing of microsatellites from the tawny frogmouth, Podargus strigoides (Class Aves, Family Podargidae)

2012 ◽  
Vol 60 (2) ◽  
pp. 133
Author(s):  
Fiona E. Hogan ◽  
Marian Weaving ◽  
Gregory R. Johnston
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Microsatellite Markers ◽  
Reproductive Ecology ◽  
454 Sequencing ◽  
Urban Environments ◽  
Shotgun Sequencing ◽  
Target Species ◽  
Single Population ◽  
Polymorphic Microsatellite

We isolated 24 novel polymorphic microsatellite markers from the tawny frogmouth, a nocturnal bird endemic to Australia, which has successfully adapted to urban environments. Initially, 454 shotgun sequencing was used to identify 733 loci with primers designed. Of these, we trialled 30 in the target species of which all amplified a product of expected size. Subsequently, all 30 of these loci were screened for variation in 25 individuals, from a single population in Melbourne, Victoria, Australia. Twenty-eight loci were polymorphic with observed heterozygosity ranging from 0.03 to 0.96 (mean 0.58) and the number of alleles per locus ranged from 2 to 18 (average of 6.5); we confirmed that 24 loci conformed to Hardy–Weinberg expectations. The 24 loci identified here will be sufficient to unequivocally identify individuals and will be useful in understanding the reproductive ecology, population genetics and the gene flow amongst localities in urban environments where this bird thrives.

scholarly journals Antioxidant System Response and cDNA-SCoT Marker Profiling inPhoenix dactyliferaL. Plant under Salinity Stress

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Fahad Al-Qurainy ◽  
Salim Khan ◽  
Mohammad Nadeem ◽  
Mohamed Tarroum ◽  
Abdel-Rhman Z. Gaafar
Keyword(s):  
Salinity Stress ◽  
Date Palm ◽  
Thiobarbituric Acid ◽  
Phoenix Dactylifera ◽  
Start Codon ◽  
System Response ◽  
Thiobarbituric Acid Reactive Substances ◽  
Fresh Weight ◽  
Gene Expressions ◽  
Scot Marker

ManyPhoenix dactylifera(date palm) cultivars are grown in the arid and semiarid regions of the world, including Saudi Arabia.P. dactyliferais highly tolerant to salinity stress. To investigate the response of Khalas cultivar ofP. dactylifera, two-month-old plants were treated with sodium chloride (50, 100, and 150 mM NaCl) for three months. Our result showed that proline content was higher in all treated plants compared to control plants. Thiobarbituric acid reactive substances (TBARS) were increased at 100 and 150 mM NaCl treatments; however, the result was found nonsignificant between control and plants treated at 50 mM NaCl. Similarly, enzyme activities of catalase (CAT) and superoxide dismutase (SOD) were 0.805 and 0.722 U/mg protein/min, respectively, and were greater at 100 and 150 mM NaCl treatments compared to the control plants. Total chlorophyll content and fresh weight of shoots and roots decreased substantially with the increase of salinity. A cDNA start codon-targeted (cDNA-SCoT) marker showed a variation in different gene expressions profiling between treated and untreated plants under various NaCl concentrations.

Population genetics of Melampus bidentatus (Gastropoda: Pulmonata): the effect of planktonic development on gene flow

Genetica ◽  
1985 ◽  
Vol 66 (3) ◽  
pp. 223-229 ◽  
Author(s):  
S. W. Schaeffer ◽  
E. C. Keller ◽  
N. E. Buroker
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Melampus Bidentatus

Genetic diversity analysis of Iranian Nigella sativa L. landraces using SCoT markers and evaluation of adjusted polymorphism information content

2015 ◽  
Vol 15 (1) ◽  
pp. 64-71 ◽  
Author(s):  
Khaled Mirzaei ◽  
Ghader Mirzaghaderi
Keyword(s):  
Genetic Diversity ◽  
Information Content ◽  
Polymorphism Information Content ◽  
Nigella Sativa ◽  
Genetic Relationships ◽  
Start Codon ◽  
Discrimination Power ◽  
Black Cumin ◽  
Scot Marker ◽  
Mediterranean Regions

The genetic diversity of 39 Iranian black cumin (Nigella sativa L.) landraces was analysed using 14 polymorphic Start Codon Targeted (SCoT) markers. A total of 106 bands ranging from 3 (for SCoT70) to 13 (for SCoT23) were observed. Of them, 33 (31%) bands were polymorphic with a mean of 1.65 bands per primer. Polymorphism information content (PIC) per primer ranged from 0.035 (for SCoT12) to 0.133 (for SCoT70), with an average of 0.078. Besides PIC, Simpson's diversity (D) index was also calculated for each SCoT marker as an indication of discrimination power across population. The D index was used to adjust the PIC of the SCoT markers. As the adjusted PIC (PICD= PIC × D) was calculated based on both the PIC and the rate of band dispersion, this reflected the informativeness of a dominant marker more precisely than PIC. Genetic relationships were estimated using Jaccard's similarity coefficient-generated values between different pairs of genotypes that varied from 80 to 97% with an average of 88%. These coefficients were applied to construct a dendrogram using the UPGMA algorithm. A high genetic similarity was observed that might be due to the fact that N. sativa is a self-pollinated plant not originated from Iran and might have been imported from the Mediterranean regions.

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