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 ◽  
...  
2018 ◽  
Vol 26 (3) ◽  
pp. 238-247
Author(s):  
Xunhe Huang ◽  
◽  
Zheqi Yu ◽  
Zhuoxian Weng ◽  
Danlin He ◽  
...  

2014 ◽  
Vol 13 (2) ◽  
pp. 3275-3282 ◽  
Author(s):  
W.Q. Zhu ◽  
H.F. Li ◽  
J.Y. Wang ◽  
J.T. Shu ◽  
C.H. Zhu ◽  
...  

Author(s):  
M. Syamsul Arifin Zein ◽  
Sri Sulandari ◽  
Jakaria Jakaria ◽  
I Made Londra ◽  
Suprio Guntoro ◽  
...  

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%.


2016 ◽  
Vol 283 (1832) ◽  
pp. 20160196 ◽  
Author(s):  
Denis Fournier ◽  
Simon Hellemans ◽  
Robert Hanus ◽  
Yves Roisin

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.


2013 ◽  
Vol 40 (6) ◽  
pp. 4123-4128 ◽  
Author(s):  
M. S. A. Bhuiyan ◽  
Shanyuan Chen ◽  
S. Faruque ◽  
A. K. F. H. Bhuiyan ◽  
Albano Beja-Pereira

2019 ◽  
Vol 50 (3) ◽  
pp. 266-270 ◽  
Author(s):  
X. Xia ◽  
J. Yu ◽  
X. Zhao ◽  
Y. Yao ◽  
L. Zeng ◽  
...  

Author(s):  
Athumani Nguluma

The Small East African (SEA) goat (Capra hircus) breeds are widely distributed in different agro-ecological zones of Tanzania. We report the genetic diversity, maternal origin, and phylogenetic relationship among the 12 Tanzanian indigenous goats populations, namely Fipa (n = 44), Songwe (n = 34), Tanga (n = 33), Pwani (n = 40), Newala (n = 49), Lindi (n = 46), Gogo (n = 73), Pare (n = 67), Maasai (n = 72), Sukuma (n = 67), and Ujiji (n = 67), based on the mitochondrial DNA (mtDNA) D-loop. High haplotype (Hd = 0.9619-0.9945) and nucleotide (π = 0.0120-0.0162) diversities were revealed from a total of 389 haplotypes. The majority of the haplotypes (h = 334) drawn from all the goat populations belonged to Haplogroup A which was consistent with the global scenario on the genetic pattern of maternal origin of all goat breeds in the world. Haplogroup G comprised of 45 haplotypes drawn from all populations except the Ujiji goat population while Haplogroup B with 10 haplotypes was dominated by Ujiji goats (41%). Tanzanian goats shared four haplotypes with the Kenyan goats and two with goats from South Africa, Namibia, and Mozambique. There was no sharing of haplotypes observed between individuals from Tanzanian goat populations with individuals from North or West Africa. The indigenous goats in Tanzania have high genetic diversity defined by 389 haplotypes and multiple maternal origins of haplogroup A, B and G. There is a lot of intermixing and high genetic variation within populations which represent an abundant resource for selective breeding in the different agro-ecological regions of the country.


2010 ◽  
Vol 53 (5) ◽  
pp. 609-617 ◽  
Author(s):  
H.-F. Li ◽  
W.-Q. Zhu ◽  
W.-T. Song ◽  
J.-T. Shu ◽  
W. Han ◽  
...  

Abstract. The 667 bp control region of mitochondrial DNA from 8 representative domestic duck breeds in China, which were all native preserved duck breeds, and a mallard (6 Anas zonorhyncha individuals) were sequenced. The genetic polymorphism and the origin of the 8 domestic ducks were analysed. The result showed that the haplotype diversity (Hd) and average nucleotide diversity (Pi) were 0.67136 and 0.19 %, respectively. Hd and Pi of Youxian Sheldrake were the highest in the 8 domestic duck breeds. Kimura-2 parameter genetic distance between the breeds ranged from 0.00056 to 0.00414. The NJ phylogenetic tree and reduced median-joining network chart were constructed by the total 38 haplotypes and 96 sequences, which included 12 sequences of Anas platyrhynchos from GenBank, 6 sequences of Anas zonorhyncha from GenBank and 78 sequences of this study (72 domestic ducks and 6 Anas zonorhyncha). The maternal origin of the 8 domestic ducks all originated from Anas platyrhynchos.


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