scholarly journals Mitochondrial genetic diversity and maternal origin of Guangdong indigenous chickens

2018 ◽  
Vol 26 (3) ◽  
pp. 238-247
Author(s):  
Xunhe Huang ◽  
◽  
Zheqi Yu ◽  
Zhuoxian Weng ◽  
Danlin He ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Maternal Origin ◽  
Indigenous Chickens

scholarly journals Molecular genetic diversity and maternal origin of Chinese black-bone chicken breeds

2014 ◽  
Vol 13 (2) ◽  
pp. 3275-3282 ◽  
Author(s):  
W.Q. Zhu ◽  
H.F. Li ◽  
J.Y. Wang ◽  
J.T. Shu ◽  
C.H. Zhu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Genetic ◽  
Maternal Origin ◽  
Molecular Genetic Diversity ◽  
Chicken Breeds

scholarly journals Evaluation of the genetic diversity of six Chinese indigenous chickens

2020 ◽  
Vol 33 (10) ◽  
pp. 1566-1572
Author(s):  
Yuzhu Sha ◽  
Caixia Gao ◽  
Meimei Liu ◽  
Shengguo Zhao
Keyword(s):  
Genetic Diversity ◽  
Genetic Resources ◽  
Indian Subcontinent ◽  
Coastal Region ◽  
Principal Component ◽  
Sharp Decrease ◽  
Haplotype Sharing ◽  
Indigenous Chickens ◽  
D Loop ◽  
Commercial Chickens

Objective: The extensive breeding of commercial chickens has led to a sharp decrease in the resources of many indigenous chickens, especially the indigenous chickens in the southeastern coastal region, which are on the verge of extinction, and the indigenous chickens in the northwestern region of China, which are also at risk. However, there are few reports on the evaluation of genetic diversity and conservation of genetic resources of indigenous chickens in remote areas in the Northwest of China.Methods: In the present study, the genetic diversity and phylogenetic relationship of six indigenous chickens from different regions were studied based on variation in mitochondrial DNA control region (D-loop), and the degree of introgression from commercial breeds into these chickens was determined by the amount of haplotype sharing between indigenous and commercial breeds.Results: Twenty-five polymorphic sites and 25 haplotypes were detected in 206 individuals. Principal component analysis showed that the Jingning chicken had the highest genetic diversity among the six indigenous chickens. According to the degree of introgression, the six indigenous breeds may be involved in haplotype sharing with commercial breeds, and the introgression from commercial chickens into the Haidong chicken is the most serious.Conclusion: The genetic uniqueness of indigenous chickens has been eroded, so it is necessary to consider the protection of their genetic resources. Phylogenetic analysis suggests that the six indigenous chickens have two major matrilineal origins: one from Yunnan or its surrounding areas in China and the other from the Indian subcontinent.

scholarly journals DIVERSITAS GENETIK DAN HAPLOGROUP KAMBING GEMBRONG BERSTATUS KRITIS DI KABUPATEN KARANGASEM, BALI (Genetic Diversity and Haplogroup of Endangered Gembrong Goat In Karangasem, Bali)

2016 ◽  
Vol 10 (2) ◽  
pp. 181-185
Author(s):  
M. Syamsul Arifin Zein ◽  
Sri Sulandari ◽  
Jakaria Jakaria ◽  
I Made Londra ◽  
Suprio Guntoro ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Genetic Variability ◽  
South Asia ◽  
Maternal Origin ◽  
Mitochondrial Dna Control Region ◽  
Hypervariable Segment ◽  
Phylogeny Analysis ◽  
Western Asia ◽  
Endangered Breed

This study was conducted to evaluate the genetic diversity and phylogeny of Gembrong goat. For this purpose, 21 goats from endangered breed in Karangasem Bali were used. Molecular analysis of genetic diversity and phylogeography used hypervariable segment 1 of mitochondrial DNA control region. The result showed that genetic variability of Gembrong goat was homogeneous with only one different sites, namely the substitution pyrimidines of C ↔ T (transitional). Phylogeny analysis results showed maternal origin of Gembrong goat is lineage (subhaplogroup) B1 with frequency of 100%. Haplogroup B were known has been domesticated from wild goat in western Asia, then headed to south Asia and infiltrated to southeast Asia, including Gembrong goat in Bali, Indonesia. As a conclusion, genetic diversity of Gembrong goat from remaining population in Karangasem very low and originate from lineages/haplogroup B1 with a frequency of 100%.

scholarly journals Facultative asexual reproduction and genetic diversity of populations in the humivorous termite Cavitermes tuberosus

2016 ◽  
Vol 283 (1832) ◽  
pp. 20160196 ◽  
Author(s):  
Denis Fournier ◽  
Simon Hellemans ◽  
Robert Hanus ◽  
Yves Roisin
Keyword(s):  
Genetic Diversity ◽  
Growth Rate ◽  
Asexual Reproduction ◽  
Evolutionary Origin ◽  
Maternal Origin ◽  
Candidate Species ◽  
Queen Succession ◽  
Primary Reproductives ◽  
Microsatellite Analyses

Termite colonies are typically founded by a pair of sexually reproducing dispersers, which can sometimes be replaced by some of their offspring. Some Reticulitermes and Embiratermes species routinely practice asexual queen succession (AQS): the queen is replaced by neotenic daughters produced by parthenogenesis, which mate with the primary king. Here, to cast light on the evolution of AQS, we investigated another candidate species, Cavitermes tuberosus (Termitinae). Of 95 nests, 39 contained a primary queen and 28 contained neotenic females (2–667 individuals), usually with the primary king. Microsatellite analyses confirmed that colonies were initiated by single pairs after large dispersal flights. More than 80% of the neotenic females were of exclusively maternal origin and completely homozygous, suggesting automictic parthenogenesis with gamete duplication. Conversely, workers, soldiers, and most alates and primary reproductives were produced sexually. AQS often occurs late, after colonies have reached maturity, whereas early AQS in other species may boost the young colony's growth rate. We suggest additional benefits of AQS in C. tuberosus , related with a smaller size, lesser stability and higher mobility of colonies. Our data add to the phylogenetical dispersion and diversity of modalities of AQS in termites, supporting a multiple evolutionary origin of this process.

scholarly journals Genetic diversity of indigenous chickens from selected areas in Kenya using microsatellite markers

2017 ◽  
Vol 15 (2) ◽  
pp. 489-495 ◽  
Author(s):  
Okoth Noah Okumu ◽  
J.J.N. Ngeranwa ◽  
Y.S. Binepal ◽  
A.K. Kahi ◽  
W.W. Bramwel ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Indigenous Chickens

scholarly journals African Maternal Origin and Genetic Diversity of Chinese Domestic Donkeys

2007 ◽  
Vol 20 (5) ◽  
pp. 645-652 ◽  
Author(s):  
Chu-Zhao Lei ◽  
Qing-Lan Ge ◽  
Hu-Cai Zhang ◽  
Ruo-Yu Liu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Maternal Origin
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