scholarly journals Genetic diversity evolution in the Mexican Charolais cattle population

2020 ◽  
Author(s):  
Ángel Ríos-Utrera ◽  
Moisés Montaño-Bermúdez ◽  
Vicente Eliezer Vega-Murillo ◽  
Guillermo Martínez-Velázquez ◽  
Juan José Baeza-Rodríguez ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cattle Population ◽  
Charolais Cattle

scholarly journals Genetic diversity derived from pedigree information and estimation of genetic parameters for reproductive traits of Limousine and Charolais cattle raised in Italy

2020 ◽  
Vol 19 (1) ◽  
pp. 762-771 ◽  
Author(s):  
Marcos Paulo Gonçalves de Rezende ◽  
Carlos Henrique Mendes Malhado ◽  
Stefano Biffani ◽  
Paulo Luis Souza Carneiro ◽  
Riccardo Bozzi
Keyword(s):  
Genetic Diversity ◽  
Genetic Parameters ◽  
Reproductive Traits ◽  
Pedigree Information ◽  
Charolais Cattle ◽  
Estimation Of Genetic Parameters

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.

scholarly journals Genetic Diversity of Nepalese Indigenous Cattle Breeds Based on D-Loop Mitochondrial DNA

2021 ◽  
Vol 19 (2) ◽  
pp. 103-108
Author(s):  
Neena Amatya Gorkhali ◽  
Chhiring Sherpa ◽  
Aashish Dhakal ◽  
Sanjay Dhungana ◽  
Saroj Sapkota ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Sample Population ◽  
Cattle Population ◽  
Indigenous Cattle ◽  
Ancestral Origin ◽  
Cattle Breeds ◽  
North East ◽  
D Loop

Nepalese cattle are known for their genetic potentiality concerning inhabitant in extreme climatic conditions, surviving in the scarce food supply, and resistant to several diseases. We aimed to assess Nepal’s ancestral origin and genetic diversity of indigenous cattle breeds based on hyper-variable D loop mtDNA sequences. Three cattle breeds (Siri, Achammi, & Lulu) comprising the total sample population (n= 75) were employed in the study where the mt DNA information of two breeds (Achammi & Lulu) were retrieved from the published source. Hyper-variable D loop (910bp) of Siri cattle was PCR amplified and sequenced. This study claims that the possible ancestral origin of Bos taurus and Bos indicus mtDNA lineage in the Nepalese cattle population is majorly influenced by China and India, respectively. This study suggests that Nepalese cattle can be divided into two major groups: Bos taurus and Bos indicus, where most of the cattle population was of Bos indicus origin. The sampled population can be classified into three significant haplogroups: T3 (25%), I1 (48%), and I2 (27%) revealing a higher genetic diversity among the Nepalese cattle population. Only T3 taurine haplogroup was found in the sampled population. It was consistent with the fact that the absence of T1 haplogroup in North-East Asian cattle. In terms of Bos indicus, the I1 haplogroup was dominant over I2. Higher genetic diversity can be appropriate reasoning for Nepalese cattle’s survival in a harsh environment and low food conditions.

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