scholarly journals Y chromosome genetic diversity and breed relationships in nativePolish cattle assessed by microsatellite markers

2015 ◽  
Vol 39 ◽  
pp. 611-617 ◽  
Author(s):  
Beata PRUSAK ◽  
Wioletta SAWICKA-ZUGAJ ◽  
Agnieszka KORWIN-KOSSAKOWSKA ◽  
Tomasz GRZYBOWSKI
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Y Chromosome

Genetic diversity and zebu genes introgression in cattle population along the coastal region of the Bight of Benin

2009 ◽  
Vol 44 ◽  
pp. 45-55 ◽  
Author(s):  
O.D. Koudandé ◽  
G. Dossou-Gbété ◽  
F. Mujibi ◽  
H. Kibogo ◽  
D. Mburu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Differentiation ◽  
Microsatellite Markers ◽  
Y Chromosome ◽  
Coastal Region ◽  
Chromosome Analysis ◽  
Genetic Introgression ◽  
Admixture Analysis ◽  
Cattle Population ◽  
The Mean

SummaryGenetic diversity and Zebu genetic introgression have been assessed in five subpopulations of cattle along the coastal region of Togo, Benin and Nigeria using 15 autosomal and one Y- specific microsatellite markers. Mean observed heterozygosity (Ho) ranges from 0.55 to 0.61 and the mean number of alleles (MNA) from 5.47 to 6.47. Genetic differentiation indexes (Fst), were significant between the five subpopulations (P< 0.01). Some possible population diagnostic alleles are identified with allele 254 at locus ILSTS033 and allele 182 at locus ILSTS005 found only in the population from Togo with frequencies of 5.41% and 12.82% respectively. Allele 226 of locus ILSTS103 is fixed in the Togolese population (100%) and almost fixed (98.75%) in the Benin-Valley population. Y chromosome analysis reveals male Zebu introgression in all five populations with a frequency of indicine Y chromosome ranging from 37.5% in Benin-Valley and Benin Plateau East to 100% for Benin Plateau West. Admixture analysis using the programme STRUCTURE (k = 2) confirms phenotypic observations suggesting different level of taurine background and therefore Zebu introgression amongst the populations. Within populations, variations in levels of Zebu admixture between herds were also detected. Whereas the valley population from Benin shows low level of Zebu introgression, it is the population from Benin Plateau East which is the purest.

Genetic diversity based on microsatellite markers in five Nile tilapia strains

2009 ◽  
Vol 17 (1) ◽  
pp. 82 ◽  
Author(s):  
Liang Hongwei ◽  
Li Zhong ◽  
Luo Xiangzhong ◽  
Wang Changzhong ◽  
Hu Guangfu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Nile Tilapia

scholarly journals Genetic diversity within and among Pinus pinaster populations: comparison between AFLP and microsatellite markers

Heredity ◽  
2001 ◽  
Vol 86 (4) ◽  
pp. 469-479 ◽  
Author(s):  
Stéphanie Mariette ◽  
David Chagné ◽  
Céline Lézier ◽  
Patrick Pastuszka ◽  
Annie Raffin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Pinus Pinaster

scholarly journals Genetic diversity and population structure of date palms (Phoenix dactylifera L.) in Ethiopia using microsatellite markers

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Workia Ahmed ◽  
Tileye Feyissa ◽  
Kassahun Tesfaye ◽  
Sumaira Farrakh
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Microsatellite Markers ◽  
Information Content ◽  
Date Palm ◽  
Polymorphic Information Content ◽  
Phoenix Dactylifera ◽  
Mean Value ◽  
Date Palms ◽  
Expected Heterozygosity

Abstract Background Date palm tree (Phoenix dactylifera L.) is a perennial monocotyledonous plant belonging to the Arecaceae family, a special plant with extraordinary nature that gives eminent contributions in agricultural sustainability and huge socio-economic value in many countries of the world including Ethiopia. Evaluation of genetic diversity across date palms at DNA level is very important for breeding and conservation. The result of this study could help to design for genetic improvement and develop germplasm introduction programmes of date palms mainly in Ethiopia. Results In this study, 124 date palm genotypes were collected, and 10 polymorphic microsatellite markers were used. Among 10 microsatellites, MPdCIR085 and MPdCIR093 loci showed the highest value of observed and expected heterozygosity, maximum number of alleles, and highest polymorphic information content values. A total of 112 number of alleles were found, and the mean number of major allele frequency was 0.26, with numbers ranging from 0.155 (MPdCIR085) to 0.374 (MPdCIR016); effective number of alleles with a mean value of 6.61, private alleles ranged from 0.0 to 0.65; observed heterozygosity ranged from 0.355 to 0.726; expected heterozygosity varied from 0.669 to 0.906, polymorphic information content with a mean value of 0.809; fixation index individuals relative to subpopulations ranged from 0.028 for locus MPdCIR032 to 0.548 for locus MPdCIR025, while subpopulations relative to total population value ranged from − 0.007 (MPdCIR070) to 0.891 (MPdCIR015). All nine accesstions, neighbour-joining clustering analysis, based on dissimilarity coefficient values were grouped into five major categories; in population STRUCTURE analysis at highest K value, three groups were formed, whereas DAPC separated date palm genotypes into eight clusters using the first two linear discriminants. Principal coordinate analysis was explained, with a 17.33% total of variation in all populations. Generally, the result of this study revealed the presence of allele variations and high heterozygosity (> 0.7) in date palm genotypes. Conclusions Microsatellites (SSR) are one of the most preferable molecular markers for the study of genetic diversity and population structure of plants. In this study, we found the presence of genetic variations of date palm genotypes in Ethiopia; therefore, these genetic variations of date palms is important for crop improvement and conservation programmes; also, it will be used as sources of information to national and international genbanks.

scholarly journals Microsatellite markers-based characterisation of elephant grass (Pennisetum purpureum) harvested from selected locations in South-West Nigeria

2020 ◽  
Vol 37 (1) ◽  
pp. 38-45
Author(s):  
O.A. Okukenu ◽  
A.A. Olajide ◽  
P.A. Dele ◽  
M. Wheto ◽  
B.T. Akinyemi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Dna Extraction ◽  
Morphological Characterization ◽  
Ethanol Solution ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
South West ◽  
Ssr Primers ◽  
Genetic Index

This study was carried out to characterise Pennisetum purpureum harvested from some selected locations in S outh-W estern Nigeria using microsatellite markers. Leaf parts of growing young elephant grass (Pennisetum purpureum) were harvested and immediately preserved in ethanol solution before DNA extraction. Two (2) SSR primers (CTM59 and Xtxp278) were used to assess genetic diversity in Pennisetum purpureum. The result shows that 72% of the molecular variations in the elephant grass exists within the population with 28% among the population; there were no unique characteristics among the Nine (9) populations. Nei genetic index ranged from 0.067 (lowest) observed between Isokan and Odeda populations to 0.158 (highest), between Ifedore and Ikoyi Populations. Morphological characterization showed moderate diversity with two major clusters and one minor cluster. Keyword: Elephant grass; cultivars; locations; markers

scholarly journals Identification of a new Indian camel germplasm by microsatellite markers based genetic diversity and population structure of three camel populations

2020 ◽  
Vol 27 (7) ◽  
pp. 1699-1709
Author(s):  
Rekha Sharma ◽  
Sonika Ahlawat ◽  
Himani Sharma ◽  
Ved Prakash ◽  
Shilpa ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Microsatellite Markers

Genetic diversity and population structure of Korean wild soybean ( Glycine soja Sieb. and Zucc.) inferred from microsatellite markers

2017 ◽  
Vol 71 ◽  
pp. 87-96 ◽  
Author(s):  
Muhammad Amjad Nawaz ◽  
Seung Hwan Yang ◽  
Hafiz Mamoon Rehman ◽  
Faheem Shehzad Baloch ◽  
Jeong Dong Lee ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Microsatellite Markers ◽  
Glycine Soja ◽  
Wild Soybean
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