Genetic diversity and population structure of the endangered ripon barbel, Barbus altianalis (Boulenger, 1900) in Lake Victoria catchment, Kenya based on mitochondrial DNA sequences

2013 ◽  
Vol 29 (6) ◽  
pp. 1225-1233 ◽  
Author(s):  
E. J. Chemoiwa ◽  
R. Abila ◽  
A. Macdonald ◽  
J. Lamb ◽  
E. Njenga ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Population Structure ◽  
Dna Sequences ◽  
Lake Victoria

scholarly journals Dynamic genetic diversity and population structure of Coreius guichenoti

ZooKeys ◽  
2021 ◽  
Vol 1055 ◽  
pp. 135-148
Author(s):  
Dongqi Liu ◽  
Feng Lan ◽  
Sicai Xie ◽  
Yi Diao ◽  
Yi Zheng ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Population Structure ◽  
Genetic Differentiation ◽  
Yangtze River ◽  
Fish Passage ◽  
The Yangtze River ◽  
Artificial Breeding ◽  
Significant Difference ◽  
High Elevations

To investigate the genetic effects on the population of Coreius guichenoti of dam constructions in the upper reaches of the Yangtze River, we analyzed the genetic diversity and population structure of 12 populations collected in 2009 and 2019 using mitochondrial DNA (mtDNA) control regions. There was no significant difference in genetic diversity between 2009 and 2019 (P > 0.05), but the population structure tended to become stronger. Genetic differentiation (FST) among five populations (LX, BB, YB, SF and JA) collected in 2009 was not significant (P > 0.05). However, some populations collected in 2019 were significantly differentiated (P < 0.05), indicating that the population structure has undergone change. A correlation analysis showed that the genetic diversity of the seven populations collected in 2019 was significantly negatively correlated with geographical height (r = −0.808, P = 0.028), indicating that the populations at high elevations were more vulnerable than those at low elevations. In order to prevent the further decrease of genetic diversity and population resources, some conservation and restoration suggestions, such as fish passage and artificial breeding, are put forward.

scholarly journals Genetic diversity, population structure and ancestral origin of KwaZulu-Natal native chicken ecotypes using microsatellite and mitochondrial DNA markers

2020 ◽  
Vol 19 (1) ◽  
pp. 1275-1288
Author(s):  
Nkosinathi Nxumalo ◽  
Simone Ceccobelli ◽  
Irene Cardinali ◽  
Hovirag Lancioni ◽  
Emiliano Lasagna ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Population Structure ◽  
Dna Markers ◽  
Ancestral Origin ◽  
Native Chicken ◽  
Kwazulu Natal

Genetic diversity within Scorpio maurus (Scorpiones: Scorpionidae) from morocco: Preliminary evidence based on CO1 mitochondrial DNA sequences

Biologia ◽  
2008 ◽  
Vol 63 (6) ◽  
Author(s):  
Elsa Froufe ◽  
Pedro Sousa ◽  
Paulo Alves ◽  
David Harris
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Cytochrome Oxidase ◽  
Dna Sequences ◽  
Preliminary Analysis ◽  
Mitochondrial Gene ◽  
Sequence Divergence ◽  
Preliminary Evidence ◽  
Evidence Based ◽  
Cytochrome Oxidase 1

AbstractThe large-clawed scorpion, Scorpio maurus, is a medically important scorpion and yet nothing is known regarding genetic diversity within this species. As a preliminary analysis we determined variation within the cytochrome oxidase 1 (CO1) mitochondrial gene from specimens from Morocco. High levels of genetic diversity were found that presented some geographical coherence. Of the two identified subspecies from Morocco, S. maurus birulai and S. maurus fuliginosus, the latter included genetically distinct lineages (8.0% uncorrected sequence divergence), indicating a detailed morphological and molecular revision is needed for this species.

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