Sequence characterization and SNP identification of TNP1 gene in Indian cattle breeds

Author(s):  
Ashish Ranjan ◽  
K. Raja ◽  
Ranjana Sinha ◽  
I. Ganguly ◽  
I. Gupta ◽  
...  

Present study was conducted on 50 bulls and 40 male calves of Sahiwal, Tharparkar and Karan Fries cattle maintained at ABRC and LRC, NDRI Karnal (Haryana) to characterize and identify genetic polymorphisms in TNP1 gene. A total of 1568 bp region of TNP-1 gene includes 490 bp of promoter region and two exon and one intron was sequenced and characterized in Bos indicus cattle breeds which are widely distributed in Indian sub-continent. Four sets of primers for TNP1 gene on the basis of Bos Taurus sequence (Acc. No- BK_006511) were designed using Primer3 software and PCR products of 487, 450, 455 and 250 bp were obtained. Amplicons were custom sequenced and subjected to Clustal W analysis which showed no nucleotide changes in coding region and non coding region in Indian cattle breeds as compared to Bos taurus. The 490 bp of promoter region was subjected to transcription factor binding site. Three TATA boxes and two CAAT boxes were identified in the studied fragment. Analysis of SNP was performed using restriction fragment length polymorphism (PCR-RFLP), to detect nucleotide changes in the sequence as reported (g.528G>A, SS1388116558) in Chinese Holstein breed. No polymorphisms were found for tested SNP. Only one genotype GG indicates the absence of variability in the sampled population.

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Eva M. Strucken ◽  
Netsanet Z. Gebrehiwot ◽  
Marimuthu Swaminathan ◽  
Sachin Joshi ◽  
Mohammad Al Kalaldeh ◽  
...  

Abstract Background The genetic structure of a diverse set of 15 Indian indigenous breeds and non-descript indigenous cattle sampled from eight states was examined, based on 777 k single nucleotide polymorphism (SNP) genotypes obtained on 699 animals, with sample sizes ranging from 17 to 140 animals per breed. To date, this is the largest and most detailed assessment of the genetic diversity of Indian cattle breeds. Results Admixture analyses revealed that 109 of the indigenous animals analyzed had more than 1% Bos taurus admixture of relatively recent origin. Pure indigenous animals were defined as having more than 99% Bos indicus ancestry. Assessment of the genetic diversity within and between breeds using principal component analyses, F statistics, runs of homozygosity, the genomic relationship matrix, and maximum likelihood clustering based on allele frequencies revealed a low level of genetic diversity among the indigenous breeds compared to that of Bos taurus breeds. Correlations of SNP allele frequencies between breeds indicated that the genetic variation among the Bos indicus breeds was remarkably low. In addition, the variance in allele frequencies represented less than 1.5% between the Indian indigenous breeds compared to about 40% between Bos taurus dairy breeds. Effective population sizes (Ne) increased during a period post-domestication, notably for Ongole cattle, and then declined during the last 100 generations. Although we found that most of the identified runs of homozygosity are short in the Indian indigenous breeds, indicating no recent inbreeding, the high FROH coefficients and low FIS values point towards small population sizes. Nonetheless, the Ne of the Indian indigenous breeds is currently still larger than that of Bos taurus dairy breeds. Conclusions The changes in the estimates of effective population size are consistent with domestication from a large native population followed by consolidation into breeds with a more limited population size. The surprisingly low genetic diversity among Indian indigenous cattle breeds might be due to their large Ne since their domestication, which started to decline only 100 generations ago, compared to approximately 250 to 500 generations for Bos taurus dairy cattle.


2020 ◽  
Vol 1 (1) ◽  
pp. 12-22
Author(s):  
B. M. Olanrewaju ◽  
E. B. Oghate ◽  
A. J. Adetunb ◽  
O. OlawaleJ ◽  
A. C Chineke

Kappa-casein as a mammalian milk protein is involved in a several important physiological processes and it’s about 80% of the total protein in cow milk. This study aimed at genotyping bovine Kappa casein (CSN3) in two indigenous Nigerian cattle populations and to determine the frequency distribution of Kappa casein variants as detected across the animals examined and their association with the body measurement. DNA was extracted from 100 blood samples of 50 White Fulani and 50 N’dama cattle for identification and genotyping of kappa-casein gene by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) test using HindIII restriction endonucleases. The PCR products of the specific primer K-F and K-R for the two cattle breeds give 530bp specific band. Digestion of 530bp amplified products of White Fulani and N’dama by restriction endonuclease HindIII generated three fragments of 530-, 370- and 160- bp each for the two breeds. Results of the cuts with this enzyme show the presence of genotypes AA, AB and BB in the samples. These findings suggest that BB genotype could be selected for increase body conformation and protein content of milk. Olanrewaju, B. M. | Department of Animal Production and Health, The Federal University of Technology Akure (FUTA), Ondo State, Nigeria.


2011 ◽  
Vol 82 (6) ◽  
pp. 717-721 ◽  
Author(s):  
Makoto KANEDA ◽  
Bang Zhong LIN ◽  
Shinji SASAZAKI ◽  
Kenji OYAMA ◽  
Hideyuki MANNEN

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
N. Z. Gebrehiwot ◽  
E. M. Strucken ◽  
H. Aliloo ◽  
K. Marshall ◽  
J. P. Gibson

Abstract Background Humpless Bos taurus cattle are one of the earliest domestic cattle in Africa, followed by the arrival of humped Bos indicus cattle. The diverse indigenous cattle breeds of Africa are derived from these migrations, with most appearing to be hybrids between Bos taurus and Bos indicus. The present study examines the patterns of admixture, diversity, and relationships among African cattle breeds. Methods Data for ~ 40 k SNPs was obtained from previous projects for 4089 animals representing 35 African indigenous, 6 European Bos taurus, 4 Bos indicus, and 5 African crossbred cattle populations. Genetic diversity and population structure were assessed using principal component analyses (PCA), admixture analyses, and Wright’s F statistic. The linkage disequilibrium and effective population size (Ne) were estimated for the pure cattle populations. Results The first two principal components differentiated Bos indicus from European Bos taurus, and African Bos taurus from other breeds. PCA and admixture analyses showed that, except for recently admixed cattle, all indigenous breeds are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. The African zebu breeds had highest proportions of Bos indicus ancestry ranging from 70 to 90% or 60 to 75%, depending on the admixture model. Other indigenous breeds that were not 100% African Bos taurus, ranged from 42 to 70% or 23 to 61% Bos indicus ancestry. The African Bos taurus populations showed substantial genetic diversity, and other indigenous breeds show evidence of having more than one African taurine ancestor. Ne estimates based on r2 and r2adj showed a decline in Ne from a large population at 2000 generations ago, which is surprising for the indigenous breeds given the expected increase in cattle populations over that period and the lack of structured breeding programs. Conclusion African indigenous cattle breeds have a large genetic diversity and are either pure African Bos taurus or admixtures of African Bos taurus and Bos indicus. This provides a rich resource of potentially valuable genetic variation, particularly for adaptation traits, and to support conservation programs. It also provides challenges for the development of genomic assays and tools for use in African populations.


Author(s):  
Ashwani Arya ◽  
Archana Verma ◽  
I. D. Gupta ◽  
Shahid A. Shergojry ◽  
Ankit Magotra ◽  
...  

Present study was conducted on 100 lactating Murrah buffaloes maintained at LRC, NDRI Karnal (Haryana) to characterize and to identify genetic polymorphisms in HSPB1 gene. Two sets of primers specific to coding sequence of HSPB1 gene were designed using Primer3 software and PCR products of 631 bp and 670 bp were obtained. Amplicons were custom sequenced and subjected to ClustalW analysis which revealed 8 nucleotide changes, 7 in non coding region and one in coding region in Murrah buffalo sequence as compared to Bos taurus. Only one SNP at nucleotide position G225A in exon 1 of HSPB1 gene was observed in Murrah buffalo, which resulted in two genotypes GG and AG with respective frequency of 0.84 and 0.16 indicating the existence of variability in the sampled population. The study has opened the possibility of identifying and using genetic variations in major heat shock protein genes, for the future improvement of livestock through marker assisted selection.


Author(s):  
Arun Pratap Singh ◽  
K. P. Ramesha ◽  
S. Isloor ◽  
P. Divya ◽  
Ashwani Arya ◽  
...  

Lactoferrin is an iron binding glycoprotein which plays an essential role in antimicrobial defense and a potential candidate gene in dairy cattle breeding. The present study was undertaken with the objective of sequence characterization and identification of polymorphisms within exons 2, 3 and 14 and their flanking intronic regions in lactoferrin gene of Deoni (Bos indicus) cattle by single strand conformation polymorphism (SSCP). Amplicons of exons 4, 5 and 16 showed monomorphic patterns. PCR-SSCP analysis revealed a total of eight different variants in three investigated regions of the lactoferrin gene. The locus LtfE2 revealed four different variants, viz. LtfE2-A, LtfE2-B, LtfE2-C and LtfE2-D with the frequency of 0.42, 0.26, 0.22 and 0.10, respectively. Analysis of exon 3 and 14 revealed two unique SSCP patterns with the frequencies of 0.54 and 0.46, 0.86 and 0.14 respectively. Comparison of nucleotide sequences of lactoferrin gene of the Deoni cattle with taurine cattle revealed a total of 12 point mutations, 11 of which were found to be in coding region with 10 transitions. Conceptualized translation of nucleotide sequence revealed 5 amino acid changes. The SNPs identified in the coding region of lactoferrin gene may serve as potential genetic marker (s) in cattle for disease resistance.


2006 ◽  
Vol 89 (12) ◽  
pp. 4921-4923 ◽  
Author(s):  
M. Ron ◽  
M. Cohen-Zinder ◽  
C. Peter ◽  
J.I. Weller ◽  
G. Erhardt

2019 ◽  
Vol 26 (1) ◽  
pp. 44
Author(s):  
Endang Tri Margawati ◽  
Slamet Diah Volkandari ◽  
Indriawati Indriawati ◽  
Emma M. Svensson

Calpastatin is one of gene markers affecting meat tenderness. The study aimed to evaluate genetic variation of calpastatin (CAST) gene of Bali cattle (Bos javanicus) in lndonesia. A total of 61 samples consisting of 21 Bali cattle, 22 Ongole cattle (Bos indicus), and 18 Friesian Holstein (FH) cattle (Bos taurus) were applied. The Ongole and FH cattle were involved for breed comparison. DNA was extracted from fresh blood using a High Salt method and measured their quality by a Spectrophotometer. A 523 bp of Calpastatin gene fragment was amplified by Polymerase Chain Reaction and Restriction Fragment Polymorphism (PCR-RFLP) technique with RsaI restriction enzyme for genotyping. Result showed that two variants alleles (C and G) and three genotypes (CC, GC, GG) were found in those Bali, Ongole and FH samples. Allele G was dominant allele with the highest G allele was in Bali cattle population (0.88). The higher percentage of allele C was found in Ongole and Friesian Holstein compared to that in Bali cattle. The Ongole breed tends to have a potential source of lean meat quality. This finding identified that genetic variation of CAST gene was exist in Bali cattle and adapted cattle of Ongole and FH in Indonesian.


Author(s):  
A. S. Kramarenko

The Southern Meat cattle is a composite breed developed by crossing Cuban zebu (Bos indicus) with different cattle breeds (Bos taurus) – local the Red Steppe, Hereford, Charolais, Santa Gertrudis, Dairy Shorthorn. Genetic structure of the Southern meat cattle breed from the State Enterprise Experimental Farm “Askaniyske” NAAS Ukraine (Kherson region) were investigated based on the microsatellite DNA loci. Analysis included 192 animals. A panel of 12 bovine-specific microsatellite markers (TGLA227, BM2113, TGLA53, ETH10, SPS115, TGLA122, INRA23, TGLA126, BM1818, ETH3, ETH225 and BM1824), recommended of the ISAG for cattle genetic diversity studies, was selected for genetic characterization and revealing the extent of genetic diversity in the Southern Meat cattle breed. Genomic DNA was extracted from tissue samples using Nexttec column (Nexttec Biotechnology GmbH, Germany) following the manufacturer's instructions. All laboratory tests were conducted in the laboratory of Molecular Genetics, Animal Center of Biotechnology and Molecular Diagnostics, All-Russian Research Institute for Animal Husbandry named after academy member L.K. Ernst. We report the distribution and the frequency of a taurine and an indicine specific alleles in the Southern Meat cattle breed using literature data about the Zebu and different cattle breeds genetic structure based on microsatellite loci from our list. It can be assumed that the TGLA22777, BM2113141-143, ETH10209-211, TGLA122149, INRA23194-198, TGLA126123, ETH225156-158-160 alleles among the Southern Meat cattle breed examined individuals were inherited from a B. indicus ancestor. On the other hand, the TGLA53156, ETH10217-219, TGLA122143, INRA23202, TGLA126115, ETH225148-150, BM1824188-190 alleles in the Southern Meat cattle gene pool may be inherited from a B. taurus ancestor (i.e., taurine breeds diagnostic alleles).


2020 ◽  
Author(s):  
Archile Eric paguem ◽  
Babette Abanda ◽  
Mbunkah Daniel Achukwi ◽  
Praveen Baskaran ◽  
Stefan Czemmel ◽  
...  

Abstract BackgroundWest African indigenous taurine cattle display unique adaptive traits shaped by husbandry management, regional climate and exposure to endemic pathogens. They are less productive with respect to milk and meat production which has been associated with a number of factors, amongst others small size, traditional beliefs and husbandry practices. This resulted in the severe dwindling of their populations size rendering them vulnerable to extinction. The Namchi (Doayo) taurine cattle breed has documented resistance traits against trypanosome infection and exposure to tick infestation. Nonetheless, the historically later introduced Zebu cattle are the main cattle breeds in Africa today, even though they suffer more from locally prevailing pathogens. By using a reference-based whole genome sequencing approach, we sequenced for the first time the genomes of five cattle breeds from Cameroon: the Namchi (Doayo), an endangered trypanotolerant taurine breed, the Kapsiki, an indigenous trypanosusceptible taurine breed, and three Zebu (Bos indicus indicus) breeds: Ngaoundere Gudali, White Fulani and Red Fulani.ResultsApproximately 167 Giga bases of raw sequencing data were generated and mapped to the cattle reference genome UMD3.1. The coverage was 22 to 30-fold. The single nucleotide polymorphisms (SNPs) were compared with reference genomes of European Bos taurus Holstein and of Asian Bos indicus Brahman and the African trypanotolerant N’Dama breeds.Of a total of 50 million SNPs identified, 3.43 million were breed-specific ranging from 0.37 to 0.47 million SNPs in the domestic Cameroonian breeds and approximately 0.58 million constituted of small insertions and deletions. We identified breed specific-non-synonymous variants as genetic traits that could explain certain cattle-breed specific phenotypes such as increased tolerance against trypanosome parasites in the Namchi (Doayo) breed, heat tolerance in the Kapsiki breed, and growth, metabolism and meat quality in the Gudali breeds. Phylogenetic comparison grouped Namchi (Doayo) to the African Zebu clade indicating a hybrid status of the selected animal with a Zebu breed, albeit it showed the Namchi breed’s phenotype.ConclusionsThe findings provide the first comprehensive set of full genome variant data of the most important Cameroonian cattle breeds. The genomic data shall constitute a foundation for breed amelioration whilst exploiting the heritable traits and support conservation efforts for the endangered local cattle breeds.


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