scholarly journals Genetic diversity and relationship between genetic distance and geographical distance in 14 Chinese indigenous chicken breeds and red jungle fowl

2009 ◽  
Vol 54 (No. 2) ◽  
pp. 74-83 ◽  
Author(s):  
W.B. Bao ◽  
J.T. Shu ◽  
X.S. Wu ◽  
H.H. Musa ◽  
C.L. Ji ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Distance ◽  
Geographical Distance ◽  
Indigenous Chicken ◽  
Chicken Breed ◽  
Expected Heterozygosity ◽  
Red Jungle Fowl ◽  
Chicken Breeds ◽  
Tibetan Chicken ◽  
The Relationship

Genetic diversity and the relationship between genetic distance and geographical distance in red jungle fowl and 14 Chinese indigenous chicken breeds were evaluated using 29 microsatellite loci. The number of alleles per locus ranged from 2 to 25 and the average expected heterozygosity and PIC of all loci were 0.6683 and 0.50, respectively. The average number of alleles per locus ranged from 3.41 in Gushi chicken breed to 6.28 in Wannan Three-yellow chicken breed. The overall expected heterozygosity of 15 Chinese chicken breeds was 0.6686 ± 0.0254 and all breeds showed relatively large heterozygosity. The average of genetic differentiation among populations was 16.4% (<I>P</I> < 0.001). Red jungle fowl and Gushi chicken had distant genetic relationship from other breeds, while Huainan Partridge and Tibetan chicken were more closely related with other breeds. The results did not provide enough support for a significant correlation between the genetic and geographical pair-wise distances.

Evaluation of Genetic Diversity and Genetic Distance Between Twelve Chinese Indigenous Chicken Breeds Based on Microsatellite Markers

2006 ◽  
Vol 5 (6) ◽  
pp. 550-556 ◽  
Author(s):  
Yu Ya-Bo . ◽  
Wang Jin-Yu . ◽  
D.M. Mekki . ◽  
Tang Qing-Ping . ◽  
Li Hui-Fang . ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Distance ◽  
Microsatellite Markers ◽  
Indigenous Chicken ◽  
Chicken Breeds

scholarly journals Genetic diversity and population structure of indigenous chicken of Bangladesh using microsatellite markers

2020 ◽  
Vol 33 (11) ◽  
pp. 1732-1740
Author(s):  
Muhammad Abdur Rashid ◽  
Prabuddha Manjula ◽  
Shakila Faruque ◽  
A. K. Fazlul Haque Bhuiyan ◽  
Dongwon Seo ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Genetic Distance ◽  
Microsatellite Markers ◽  
Polymorphic Information Content ◽  
Population Variation ◽  
Fixation Index ◽  
Indigenous Chicken ◽  
Diversity Measures ◽  
Red Jungle Fowl

Objective: The objectives of this study were to investigate the genetic diversity, population structure and relatedness among the five chicken populations of Bangladesh using microsatellite markers.Methods: A total of 161 individuals representing 5 chicken populations (non-descript Deshi [ND], naked neck [NN], hilly [HI], Aseel [AS], and red jungle fowl [JF]) were included in this study to investigate genetic diversity measures, population structure, genetic distance and phylogenetic relationships. Genotyping was performed using 16 selected polymorphic microsatellite markers distributed across 10 chromosomes.Results: The average observed and expected heterozygosity, mean number of alleles and polymorphic information content were found to be 0.67±0.01, 0.70±0.01, 10.7 and 0.748, respectively in the studied populations. The estimated overall fixation index across the loci (F), heterozygote deficiency within (F<sub>IS</sub>) and among (F<sub>IT</sub>) chicken populations were 0.04±0.02, 0.05 and 0.16, respectively. Analysis of molecular variance analysis revealed 88.07% of the total genetic diversity was accounted for within population variation and the rest 11.93% was incurred with population differentiation (F<sub>ST</sub>). The highest pairwise genetic distance (0.154) was found between ND and AS while the lowest distance was between JF and AS (0.084). Structure analysis depicted that the studied samples can be categorized into four distinct types or varieties (ΔK = 3.74) such as ND, NN, and HI where AS and JF clustered together as an admixed population. The Neighbor-Joining phylogenetic tree and discriminant analysis of principal component also showed close relatedness among three chicken varieties namely AS, HI, and JF.Conclusion: The results reflected that indigenous chicken of Bangladesh still possess rich genetic diversity but weak differentiation among the studied populations. This finding provides some important insight on genetic diversity measures that could support the designing and implementing of future breeding plans for indigenous chickens of Bangladesh.

scholarly journals Contribution of exotic chicken breeds to dietary diversity of the rural households in Ethiopia

2018 ◽  
Vol 6 (2) ◽  
pp. 99-107
Author(s):  
Teklemariam Abadi
Keyword(s):  
Dietary Diversity ◽  
Rural Households ◽  
Indigenous Chicken ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Systematic Random Sampling ◽  
Chicken Breed ◽  
Governmental Organizations ◽  
Non Governmental Organizations ◽  
Chicken Breeds

The study was conducted in midland and lowland agro-ecological zone of North western zone of Tigray, Ethiopia. Two districts were selected purposively based on their potential exotic chicken breed production. Out of the total chicken producers in the study area 264 farmers, 132 from each of the two districts were selected randomly using systematic random sampling methods. It was conducted in cross sectional survey data from 264 respondents in 2016. Its aim was to assess the contribution of producing exotic chicken to dietary diversity of the rural households with 24 hours recall method. The study examines the study area is characterized in a low dietary diversity mainly defined by starchy staples (grains, condiments, oil or fats) at the expense of protein sources (meat, fish, fruits, vegetables, eggs). The result also indicates that there is a higher probability of the exotic chicken producers groups to move from a medium dietary diversity status to a high dietary diversity status as compared with indigenous chicken producers. Based on the study result, there is possibility to improve dietary diversity and income of the households through introduction and dissemination of exotic chicken breeds to rural households. Hence, governmental and non-governmental organizations should help in intervention of exotic chicken breed to the farm households by giving different incentives.

scholarly journals Genetic analysis of silver-fir populations in the Beskids

2011 ◽  
Vol 72 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Leon Mejnartowicz
Keyword(s):  
Genetic Diversity ◽  
Genetic Variation ◽  
Genetic Analysis ◽  
Abies Alba ◽  
Genetic Distances ◽  
Silver Fir ◽  
Geographical Distance ◽  
Polymorphic Loci ◽  
Expected Heterozygosity ◽  
Rare Alleles

Twenty-eight isozymic loci were studied in the Beskid Mts., in four populations of common silver-fir (<em>Abies alba</em>): one in Beskid Makowski (BM) and three populations in Beskid Sądecki (BS). Their genetic variation and diversity were analyzed, and Nei's genetic distances between the populations were calculated. The results show that the geographical distance between the BM population and the three BS populations is reflected in genetic distances. The BM population is clearly distinct from the others. It has the lowest genetic diversity (<em>I</em> = <em>0.42</em>), percentage of polymorphic loci <em>(%PoL </em>= <em>64.29</em>) and number of rare alleles (<em>NoRa </em>= <em>5</em>). Besides, the BM population has the highest observed heterozygosity (<em>Ho </em>= <em>0.291</em>), which exceeds the expected heterozygosity (<em>He </em>= <em>0.254</em>), estimated on the basis of the Hardy-Weinberg Principle. On the contrary, BS populations are in the state of equilibrium, which is manifested, in similar values of <em>He </em>= <em>0.262 </em>and <em>Ho </em>= <em>0.264</em>.

scholarly journals Assessment of Population Structure and Genetic Diversity of 15 Chinese Indigenous Chicken Breeds Using Microsatellite Markers

2008 ◽  
Vol 21 (3) ◽  
pp. 331-339 ◽  
Author(s):  
Guohong Chen ◽  
Wenbin Bao ◽  
Jingting Shu ◽  
Congliang Ji ◽  
Minqiang Wang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Microsatellite Markers ◽  
Indigenous Chicken ◽  
Chicken Breeds

scholarly journals Is it possible to obtain zero estimates of genetic diversity? A case study of the Nigerian indigeneous goat breeds at the β-lactoglobulin gene locus

2017 ◽  
Vol 33 (4) ◽  
pp. 375-388
Author(s):  
Emeka Ezewudo ◽  
Geka Abubakar ◽  
Sunday Egena ◽  
Olushola Alabi
Keyword(s):  
Genetic Diversity ◽  
Genetic Distance ◽  
Gene Locus ◽  
Polymorphic Locus ◽  
Information Index ◽  
Expected Heterozygosity ◽  
Goat Population ◽  
The Mean ◽  
Β Lactoglobulin

The current investigation was conducted to appraise the genetic diversity and genetic distance of three goat populations namely; Red Sokoto, Sahel and West African Dwarf (WAD), in Nigeria, making use of blood samples collected from 20, 20 and 20 individual from which blood DNAs were extraction, respectively. The DNAs extracted were used to study polymorphism at the ?-lactoglobulin gene locus using RLFP-PCR process. Results revealed that the mean total number of alleles was 1 while the effective number of alleles was also 1. The percentage of polymorphic locus was 0% while Shannon?s information index, observed homozygousity, expected heterozygosity, unbiased expected heterozygosity and inbreeding coefficient (F) were all observed to be 0.000. The pairwise Fst was 0.000 between all the breeds of goats. Variation within and between the populations of goats was 0% at p>0.05. The genetic distance between the goat breeds was 0.000. The present study revealed that RLFP-PCR may not be a powerful tool for the study of the ?-lactoglobulin gene locus and hence other methodologies should be employed for a broader judgment on the genetic status of the goat population at the locus.

Assessment of Genetic Diversity and Distance of Lipoprotein Lipase Between Red Jungle Fowl and Domestic Chicken Breeds

2007 ◽  
Vol 7 (4) ◽  
pp. 663-667 ◽  
Author(s):  
Hassan H. Musa ◽  
Jin H. Cheng . ◽  
Wen B. Bao . ◽  
Sheng L. Wu . ◽  
Qi Xu . ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Lipoprotein Lipase ◽  
Domestic Chicken ◽  
Red Jungle Fowl ◽  
Chicken Breeds

Evaluation of genetic diversity in Chinese indigenous chicken breeds using microsatellite markers

2006 ◽  
Vol 49 (4) ◽  
pp. 332-341 ◽  
Author(s):  
Lujiang Qu ◽  
Xianyao Li ◽  
Guifang Xu ◽  
Kuanwei Chen ◽  
Hongjie Yang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Indigenous Chicken ◽  
Chicken Breeds

scholarly journals Genetic diversity of pituitary transcription factor 1 (PIT 1) gene in Nigerian local and exotic chicken

2020 ◽  
Vol 47 (1) ◽  
pp. 12-18
Author(s):  
B. O. Agaviezor ◽  
C. S. Chukwuemeka
Keyword(s):  
Genetic Diversity ◽  
Transcription Factor ◽  
Genetic Distance ◽  
Genomic Dna ◽  
Evolutionary Divergence ◽  
Breeding Programs ◽  
Naked Neck ◽  
Chicken Breeds ◽  
Transcription Factor 1 ◽  
Segregating Sites

This study was carried out to investigate the genetic diversity of PIT1 gene in Nigerian local and exotic chicken breeds. Genomic DNA was extracted from the blood of Isa brown, Shika brown and Naked neck chickens which was used to amplify the PIT1 gene and later sequenced. Sequences were aligned and analyzed using Mega 6.0 and DNASp. The results revealed that Naked neck had 181 monomorphic sites and the least was observed in Isa brown (34). However, Isa brown had the highest number of polymorphic site (181) and the least was observed in Shika brown. Singleton variable sites also varied across breeds. Number of segregating sites was highest in Isa brown (174). The highest number of haplotypes was observed in Isa brown (11). Highest number of indel sites were observed in Isa brown (46) chickens. The highest estimates of average evolutionary divergence over sequence pairs within chicken breeds was observed in Isa brown (0.766) and the least in Shika brown (0.15). The highest genetic distance is between Isa brown and Naked neck and the least between Naked neck and Shika brown. The result obtained from this study revealed a clearer understanding of the genetic diversity in PIT1 gene across the different breeds. This information can be harnessed for better policies for conservation and breeding programs.

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