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

Chen, Guohong; Bao, Wenbin; JingTing, Shu; Ji, Congliang; Min-qiang, Wang; Eding, Herwin; Muchadeyi, Farai C.; Weigend, Steffen

doi:10.5713/ajas.2008.70125

Cited by 36 publications

(40 citation statements)

References 25 publications

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“…In addition, three multi‐cluster populations were revealed within the main Asian cluster. The clustering of the Asian breeds at K = 5 is in agreement with the clustering that Chen et al. (2008) obtained for Chinese breeds.…”

Section: Resultssupporting

confidence: 89%

Genetic structure of a wide‐spectrum chicken gene pool

et al. 2009

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The genetic structure of 65 chicken populations was studied using 29 SSR loci. Six main clusters which corresponded to geographical origins and histories were identified: Brown Egg Layers, predominantly Broilers, native Chinese breeds or breeds with recent Asian origin, predominantly breeds of European derivation, a small cluster containing populations with No Common-History (NCH), and populations that had breeding history with White Leghorn. Another group of populations that shared their genome with several clusters was defined as "Multi-clusters". Gallus gallus gallus (Multi-clusters), one of the subspecies of the Red Jungle Fowl, which was previously suggested to be one of the ancestors of the domesticated chicken, has almost no sharing with European and White Egg layer populations. In a further sub-clustering of the populations, discrimination between all the 65 populations was possible, and relations between them were suggested. The genetic variation between populations was found to account for about 34% of the total genetic variation, 11% between clusters and 23% between populations within clusters. The suggested clusters may assist in future studies on genetic aspects of the chicken gene pool.

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Section: Resultssupporting

confidence: 89%

Genetic structure of a wide‐spectrum chicken gene pool

et al. 2009

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“…Wright’s F-statistics strictures showing the inbreeding coefficient in this study was 0.041, which was higher than 0.03 found in Cameroon [21], but was similar to values obtained in many Chinese IC [24, 27]. The F ST permits the approximation of migratory entities in a population per generation (Nm) based on loci.…”

Section: Discussionsupporting

confidence: 77%

“…The PIC values found in this study exceeded those (0.29-080) of Cameroon’s IC [21], and (0.31-0.49) of Chinese IC [21,22], but lower than those obtained by Tang for black-bone IC breeds (0.67) [24]. The mean frequency of alleles per marker found in this study (10.89) exceeded those recorded in previous reports in Cameroon (9.04) [21], in Ghana (7.8) [25], in Iran (5.4) [26], in China (3.8) [27], in Egypt (7.3) [28], in Pakistan (9.1) [29] and in Vietnam (6.41) [30]. The values obtained in this study were, however, lower than those from Brazilian (13.3) [31] and in the same range as from Ethiopian chicken ecotypes (10.6) [32].…”

Section: Discussioncontrasting

confidence: 76%

Genetic diversity and population structure of indigenous chicken in Rwanda using microsatellite markers

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Okeno

Ngeno

et al. 2019

Preprint

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AbstractRwanda has about 4.5 million of indigenous chicken (IC) that are very low in productivity. To initiate any genetic improvement programme, IC needs to be accurately characterized. The key purpose of this study was to ascertain the genetic diversity of IC in Rwanda using microsatellite markers. Blood samples of IC sampled from 5 agro-ecological zones were collected from which DNA was extracted, amplified by PCR and genotyped using 28 microsatellite markers. A total of 325 (313 indigenous and 12 exotic) chicken were genotyped and revealed a total number of 305 alleles varying between 2 and 22 with a mean of 10.89 per locus. 186 distinct alleles and 60 private alleles were also observed. The frequency of private alleles was highest in samples from the Eastern region, whereas those from the North West had the lowest. The influx of genes was lower in the Eastern agro-ecological zone than the North West. The mean observed heterozygosity was 0.6155, whereas the average expected heterozygosity was 0.688. The overall inbreeding coefficient among the population was 0.040. Divergence from the Hardy-Weinberg equilibrium was significant in 90% of loci in all the populations. The analysis of molecular variance revealed that about 92% of the total variation originated from variation within populations. Additionally, the study demonstrated that IC in Rwanda could be clustered into four gene groups. In conclusion, there was considerable genetic diversity in IC in Rwanda, which represents a crucial genetic resource that can be conserved or optimized through genetic improvement.

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“…There are a total of 107 local chicken breeds recorded in the National genetic resources[1,2]. Most of these breeds have not been selected intensively and have lower production performance than the commercial breeds.…”

Section: Introductionmentioning

confidence: 99%

The genetic diversity of chicken breeds from Jiangxi, assessed with BCDO2 and the complete mitochondrial DNA D-loop region

et al. 2017

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The Jiangxi Province of China has numerous native domestic chicken breeds, including some black skin breeds. The genetic diversity of Jiangxi native chickens is largely unknown, and specifically, the genetic contribution of the grey junglefowl to black skin chickens is not well understood. To address these questions, the complete D-loop region of the mitochondrial DNA (mtDNA) and beta-carotene dioxygenase 2(BCDO2)gene was sequenced in a total of 209 chickens representing seven Jiangxi native breeds. Thirty-one polymorphic sites were identified across the complete mtDNA D-loop region sequence. Twenty-three haplotypes were observed in the seven breeds, which belonged to four distinct mitochondrial clades (A, B, C and E). Clade A and B were dominant in the chickens with a frequency of approximately 67.9%. There were five SNPs that defined two haplotypes, W and Y in BCDO2. Four breeds had one haplotype and three breeds had two. We conclude that Jiangxi native chicken breeds have relatively low genetic diversity and likely share four common maternal lineages from two different maternal ancestors of junglefowl. Furthermore, some Jiangxi chicken populations may have been mixed with chickens with exotic lineage. Further research should be established to protect these domestic chicken resources.

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

Cited by 36 publications

References 25 publications

Genetic structure of a wide‐spectrum chicken gene pool

Genetic structure of a wide‐spectrum chicken gene pool

Genetic diversity and population structure of indigenous chicken in Rwanda using microsatellite markers

The genetic diversity of chicken breeds from Jiangxi, assessed with BCDO2 and the complete mitochondrial DNA D-loop region

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