Molecular Detection and Genetic Diversity of Leishmania donovani in Naturally Infected Phlebotomus chinensi from Southwestern China

2011 ◽  
Vol 11 (7) ◽  
pp. 849-852 ◽  
Author(s):  
Feng Wei ◽  
Limin Shang ◽  
Hongtao Jin ◽  
Hai Lian ◽  
Wensen Liu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Leishmania Donovani ◽  
Molecular Detection ◽  
Southwestern China

Leishmania donovani: Genetic diversity of isolates from Sudan characterized by PCR-based RAPD

2010 ◽  
Vol 125 (4) ◽  
pp. 389-393 ◽  
Author(s):  
S.H. Hamad ◽  
E.A.G. Khalil ◽  
A.M. Musa ◽  
M.E. Ibrahim ◽  
B.M. Younis ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Leishmania Donovani

scholarly journals Genetic Diversity of Bovine Viral Diarrhea Virus Infection in Goats in Southwestern China

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
Author(s):  
Yu Deng ◽  
Silu Wang ◽  
Runxia Liu ◽  
Guiying Hao
Keyword(s):  
Genetic Diversity ◽  
Infection Rate ◽  
Bovine Viral Diarrhea Virus ◽  
Southwestern China ◽  
Economic Losses ◽  
Bovine Viral Diarrhea ◽  
Border Disease Virus ◽  
Diarrhea Virus ◽  
Viral Diarrhea ◽  
Viral Diarrhea Virus

Bovine viral diarrhea virus (BVDV) affects cows, pigs, sheep, goats, and other ruminants, as well as some wild animals. BVDV causes considerable economic losses every year and many countries have developed programs aimed at the eradication of this disease. The genetic diversity of BVDV in diseased goats has never been described in southwestern China. Thus, in this study, we applied antigen-capture ELISA and RT-PCR to survey the infection rate of BVDV in diseased goats in this region. Our results demonstrated that the average BVDV infection rate in goats was 17.51%, with all positive samples indicating infection by BVDV-1 and not BVDV-2, BVDV-3, or Border disease virus. The molecular characteristics of the 5′-untranslated region (5′-UTR) of BVDV-1 were recognized as belonging predominantly to the BVDV-1a, 1b, 1c, 1m, and 1p subtypes. BVDV-1b and 1m were the most abundant subtypes identified in this region, similar to the BVDV epidemics in cattle in other regions of China. This is the first study that describes the genetic characterization of BVDV in sick goats from southwestern China and is important for future studies and control programs.

scholarly journals Molecular Detection and Genetic Diversity of Casuarina Moth, Lymantria xylina (Lepidoptera: Erebidae)

2018 ◽  
Vol 18 (3) ◽  
Author(s):  
Rong Wang ◽  
Zhihan Zhang ◽  
Xia Hu ◽  
Songqing Wu ◽  
Jinda Wang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Detection

Molecular detection and genetic diversity of norovirus genogroup IV: a yearlong monitoring of sewage throughout Italy

2010 ◽  
Vol 155 (4) ◽  
pp. 589-593 ◽  
Author(s):  
Giuseppina La Rosa ◽  
Marcello Iaconelli ◽  
Manoochehr Pourshaban ◽  
Marta Fratini ◽  
Michele Muscillo
Keyword(s):  
Genetic Diversity ◽  
Molecular Detection

Genetic diversity of Calocedrus macrolepis (Cupressaceae) in southwestern China

2004 ◽  
Vol 32 (9) ◽  
pp. 797-807 ◽  
Author(s):  
De-Lian Wang ◽  
Zhong-Chao Li ◽  
Gang Hao ◽  
Tzen-Yuh Chiang ◽  
Xue-Jun Ge
Keyword(s):  
Genetic Diversity ◽  
Southwestern China

Molecular detection and genetic diversity of Babesia gibsoni in dogs in Bangladesh

2015 ◽  
Vol 31 ◽  
pp. 53-60 ◽  
Author(s):  
Masashi Terao ◽  
Shirin Akter ◽  
Md. Golam Yasin ◽  
Ryo Nakao ◽  
Hirotomo Kato ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Detection ◽  
Babesia Gibsoni

scholarly journals The molecular detection of genetic diversity

1998 ◽  
Vol 06 (2) ◽  
pp. 143-150
Author(s):  
QIU Fang ◽  
JIN De-Min ◽  
WANG Bin ◽  
FU Jian-Min ◽  
Keyword(s):  
Genetic Diversity ◽  
Molecular Detection

scholarly journals Distinct Genetic Structure Reflects Ploidy Level Differentiation in Newly Discovered, Extremely Small Populations of Xanthocyparis vietnamensis from Southwestern China

2021 ◽  
Vol 12 ◽  
Author(s):  
Yuliang Jiang ◽  
Tsam Ju ◽  
Linda E. Neaves ◽  
Jialiang Li ◽  
Weining Tan ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Endangered Species ◽  
Genetic Differentiation ◽  
Ploidy Level ◽  
Population Genetic ◽  
Ex Situ ◽  
Southwestern China ◽  
Small Populations ◽  
Population Groups ◽  
Quaternary Climate

Population genetic assessment is crucial for the conservation and management of threatened species. Xanthocyparis vietnamensis is an endangered species that is currently restricted to karst mountains in southwestern China and Vietnam. This rare conifer was first recorded in 2002 from northern Vietnam and then in 2013 from Guangxi, China, yet nothing is known about its genetic diversity nor ploidy level variation, although previous cytological study suggest that Vietnamese populations are tetraploids. There have been about 45 individuals found to date in Guangxi, China. Here, we genotyped 33 X. vietnamensis individuals using 20 newly developed, polymorphic microsatellite loci, to assess the genetic variability of its extremely small populations. The genetic diversity of X. vietnamensis (HE = 0.511) was lower than that of two other heliophile species, Calocedrus macrolepis and Fokienia hodginsii, which have similar distribution ranges. This is consistent with the signature of a genetic bottleneck detected in X. vietnamensis. Although the population genetic differentiation coefficient across loci is moderate (FST = 0.125), STRUCTURE analysis revealed two distinct genetic clusters, namely the northern and southern population groups; DAPC analysis grouped the southern populations together in one cluster separate from the northern populations; AMOVA analysis detected a significant genetic differentiation between the two population groups (FRT = 0.089, p < 0.05), and BARRIER analysis detected a genetic barrier between them. Moreover, we detected differentiation in ploidy level between northern and southern populations, sampled individuals from the former and the later are all diploid and tetraploid cytotypes with mean genome sizes of 26.08 and 48.02 pg/2C, respectively. We deduced that heterogeneous geomorphology and historical events (e.g., human deforestation, Quaternary climate oscillations) may have contributed to population fragmentation and small population size in X. vietnamensis. Considering both genetic and ploidy level differentiation, we propose that two different management units (northern and southern) should be considered and a combination of in situ and ex situ conservation measures should be employed to preserve populations of this endangered species in southwestern China in the light of our findings.

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