Morpho-Biometric Evaluation of the Genetic Diversity of Local Chicken Ecotypes in Four Regions (Centre-East, Sahel, Centre-North and South-West) of Burkina Faso

Until 2019, TBE was considered only to be an imported disease to the United Kingdom. In that year, evidence became available that the TBEV is likely circulating in the country1,2 and a first “probable case” of TBE originating in the UK was reported.3 In addition to TBEV, louping ill virus (LIV), a member of the TBEV-serocomplex, is also endemic in parts of the UK. Reports of clinical disease caused by LIV in livestock are mainly from Scotland, parts of North and South West England and Wales.4

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Microsatellite markers-based characterisation of elephant grass (Pennisetum purpureum) harvested from selected locations in South-West Nigeria

Nigerian Journal of Biotechnology ◽

10.4314/njb.v37i1.4 ◽

2020 ◽

Vol 37 (1) ◽

pp. 38-45

Author(s):

O.A. Okukenu ◽

A.A. Olajide ◽

P.A. Dele ◽

M. Wheto ◽

B.T. Akinyemi ◽

...

Keyword(s):

Genetic Diversity ◽

Microsatellite Markers ◽

Dna Extraction ◽

Morphological Characterization ◽

Ethanol Solution ◽

Pennisetum Purpureum ◽

Elephant Grass ◽

South West ◽

Ssr Primers ◽

Genetic Index

This study was carried out to characterise Pennisetum purpureum harvested from some selected locations in S outh-W estern Nigeria using microsatellite markers. Leaf parts of growing young elephant grass (Pennisetum purpureum) were harvested and immediately preserved in ethanol solution before DNA extraction. Two (2) SSR primers (CTM59 and Xtxp278) were used to assess genetic diversity in Pennisetum purpureum. The result shows that 72% of the molecular variations in the elephant grass exists within the population with 28% among the population; there were no unique characteristics among the Nine (9) populations. Nei genetic index ranged from 0.067 (lowest) observed between Isokan and Odeda populations to 0.158 (highest), between Ifedore and Ikoyi Populations. Morphological characterization showed moderate diversity with two major clusters and one minor cluster. Keyword: Elephant grass; cultivars; locations; markers

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XVIII.—Ants from North and South-West Australia (G.F. Hill, Rowland Turner) and Christmas Island, Straits Settlements.—Part II

Annals and Magazine of Natural History ◽

10.1080/00222931508693633 ◽

1915 ◽

Vol 15 (86) ◽

pp. 232-239 ◽

Cited By ~ 2

Author(s):

W.C. Crawley

Keyword(s):

Christmas Island ◽

South West ◽

North And South

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Risk of Plasmodium falciparum infection in south-west Burkina Faso - potential impact of expanding eligibility for seasonal malaria chemoprevention

10.21203/rs.3.rs-900546/v1 ◽

2021 ◽

Author(s):

Anne L Wilson ◽

Steve W Lindsay ◽

Alfred Tiono ◽

Jean Baptiste Yaro ◽

Hilary Ranson ◽

...

Keyword(s):

Risk Factors ◽

Plasmodium Falciparum ◽

Burkina Faso ◽

Malaria Transmission ◽

Malaria Control ◽

Control Measures ◽

Sub Saharan Africa ◽

South West ◽

Seasonal Malaria Chemoprevention ◽

The Impact

Abstract Background Burkina Faso has one of the highest malaria burdens in sub-Saharan Africa despite the mass deployment of insecticide-treated nets (ITNs) and use of seasonal malaria chemoprevention (SMC) in children aged up to 5 years. Identification of risk factors for Plasmodium falciparum infection in rural Burkina Faso could help to identify and target malaria control measures. Methods A cross-sectional survey of 1,199 children and adults was conducted during the peak malaria transmission season in south-west Burkina Faso in 2017. Logistic regression was used to identify risk factors for microscopically confirmed P. falciparum infection. A malaria transmission dynamic model was used to determine the impact on malaria cases averted of administering SMC to children aged 5–15 year old. Results P. falciparum prevalence was 32.8% in the study population. Children aged 5 to < 10 years old were at 3.74 times the odds (95% CI = 2.68–5.22, p < 0.001) and children aged 10 to 15 years old at 3.14 times the odds (95% CI = 1.20–8.21, p = 0.02) of P. falciparum infection compared to children aged less than 5 years old. Administration of SMC to children aged up to 10 years is predicted to avert an additional 57 malaria cases per 1000 population per year (9.4% reduction) and administration to children aged up to 15 years would avert an additional 89 malaria cases per 1000 population per year (14.6% reduction) in the Cascades Region, assuming coverage of pyrethroid-piperonyl butoxide ITNs. Conclusion Malaria infections were high in all age strata, although highest in children aged 5 to 15 years, despite roll out of core malaria control interventions. Given the burden of infection in school-age children, extension of the eligibility criteria for SMC could help reduce the burden of malaria in Burkina Faso and other countries in the region.

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Lithostructural and Petrochemical Survey of Djarkadougou Gold Prospect (South West Burkina Faso / West Africa)

Earth Science Research ◽

10.5539/esr.v6n1p155 ◽

2017 ◽

Vol 6 (1) ◽

pp. 155

Author(s):

Yao Honoré Koffi ◽

Sagbrou Chérubin Djro ◽

Urbain Wenmenga

Keyword(s):

West Africa ◽

Burkina Faso ◽

Sedimentary Rocks ◽

Ductile Deformation ◽

Chemical Compositions ◽

Calc Alkaline ◽

Basaltic Rocks ◽

Bimodal Volcanism ◽

South West ◽

Western Burkina Faso

The Djarkadougou gold prospect is located on the Birimian greenstone belt of the Houndé exploration permit held by the company Orezone Inc. The permit is at 275 km far from the capital Ouagadougou south- western Burkina Faso, West Africa. This area is based on sheared and metamorphosed greenschist facies rocks. Metamorphism locally reaches to the amphibolite facies around intrusions. There are two major lithological units whose interface is marked by a NW-SE trending shear corridor: an unit of andesite-basaltic rocks of andesitic breccias in the East and volcaniclastic and sedimentary unit composed flows, tuffs and felsic to mafic breccia, interbedded volcano-sedimentary rocks. All this together is intruded by plutonic rocks, and various felsic to mafic dykes. These rocks have undergone ductile to brittle heterogeneous deformations and hydrothermal alteration sericite ±carbonate ±quartz±sulphide within deformation corridors. The rocks of the East and West domains affected by three phases of brittle-ductile deformation (D1, D2, and D3) and the meteoric alteration is systematic in superficial facies of Djarakadougou core drilling.Geochemical analysis shows a tholeiitic to calc-alkaline volcanic serie characteristic a bimodal volcanism. The spectra of normalized REE chondrites are generally flat and constant reminding those of N-MORB basalt. The chemical compositions of andesite and basalt are deferred on several discrimination diagrams especially Th / Yb - Nb / Yb and 2 Nb - Zr / 4 - Y show that andesites and basalts of the prospect are issued in geotectonic setting of volcanism preponderant arc.

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High Genetic Diversity but Absence of Population Structure in Local Chickens of Sri Lanka Inferred by Microsatellite Markers

Frontiers in Genetics ◽

10.3389/fgene.2021.723706 ◽

2021 ◽

Vol 12 ◽

Author(s):

Amali Malshani Samaraweera ◽

Ranga Liyanage ◽

Mohamed Nawaz Ibrahim ◽

Ally Mwai Okeyo ◽

Jianlin Han ◽

...

Keyword(s):

Genetic Diversity ◽

Sri Lanka ◽

Microsatellite Markers ◽

Allelic Diversity ◽

Genetic Distances ◽

Population Substructure ◽

High Genetic Diversity ◽

Naked Neck ◽

Local Chicken ◽

Local Chickens

Local chicken populations belonging to five villages in two geographically separated provinces of Sri Lanka were analyzed using 20 microsatellite markers to determine the genetic diversity of local chickens. Population genetic parameters were estimated separately for five populations based on geographic locations and for eight populations based on phenotypes, such as naked neck, long legged, crested or crown, frizzle feathered, Giriraj, commercial layer, crossbreds, and non-descript chicken. The analysis revealed that there was a high genetic diversity among local chickens with high number of unique alleles, mean number of alleles per locus (MNA), and total number of alleles per locus per population. A total of 185 microsatellite alleles were detected in 192 samples, indicating a high allelic diversity. The MNA ranged from 8.10 (non-descript village chicken) to 3.50 (Giriraj) among phenotypes and from 7.30 (Tabbowa) to 6.50 (Labunoruwa) among village populations. In phenotypic groups, positive inbreeding coefficient (FIS) values indicated the existence of population substructure with evidence of inbreeding. In commercial layers, a high expected heterozygosity He = 0.640 ± 0.042) and a negative FIS were observed. The positive FIS and high He estimates observed in village populations were due to the heterogeneity of samples, owing to free mating facilitated by communal feeding patterns. Highly admixed nature of phenotypes was explained as a result of rearing many phenotypes by households (58%) and interactions of chickens among neighboring households (53%). A weak substructure was evident due to the mating system, which disregarded the phenotypes. Based on genetic distances, crown chickens had the highest distance to other phenotypes, while the highest similarity was observed between non-descript village chickens and naked neck birds. The finding confirms the genetic wealth conserved within the populations as a result of the breeding system commonly practiced by chicken owners. Thus, the existing local chicken populations should be considered as a harbor of gene pool, which can be readily utilized in developing locally adapted and improved chicken breeds in the future.

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Characteristics of farmers’ selection criteria for cowpea (Vigna unguiculata) varieties differ between north and south regions of Burkina Faso

Experimental Agriculture ◽

10.1017/s001447971900019x ◽

2019 ◽

Vol 56 (1) ◽

pp. 94-103

Author(s):

Haruki Ishikawa ◽

Issa Drabo ◽

Batieno B. Joseph ◽

Satoru Muranaka ◽

Christian Fatokun ◽

...

Keyword(s):

Burkina Faso ◽

Vigna Unguiculata ◽

Selection Criteria ◽

Stepwise Multiple Regression ◽

Seed Colour ◽

Early Maturity ◽

Improved Varieties ◽

Cowpea Varieties ◽

Selection Factors ◽

North And South

SummaryComparative analysis of preferences and key criteria for selecting cowpea (Vigna unguiculata L. Walp.) varieties was conducted using the data collected from farmers’ participatory varietal selection (FPVS) activities conducted over 3 years with a total of 2401 farmers (1230 male and 1171 female) in 13 villages in Tougouri department in northern region and Tiéfora department in southern region of Burkina Faso in West Africa. Over the 3 years, farmer criteria for variety selection remained basically stable, but some variations among the regions and years were noticed. Grain yield was the most common and the most important criterion for farmers’ choice in both regions. Farmers in Tougouri (north) put more emphasis on early maturity (90%) and drought resistance (19.7%) as selection criteria than farmers in Tiéfora (south). Farmers in Tiéfora placed statistically significant importance on seed colour and plant type, while farmers in Tougouri did not, and for these selection criteria, there were only slight differences between genders in both areas. Results of stepwise multiple regression indicated that maturity and seed colour in the north, and seed size and seed colour in the south were the most important selection factors for farmers to select cowpea varieties. Improved varieties should have sufficiently good yield to be accepted, but other favoured traits may differ by target region as a reflection of local and regional market demands as well as deep-rooted cultural preferences. Understanding local and regional differences in selection criteria for cowpea varieties is necessary to improve the acceptance of newly released improved varieties. Preferences identified in the participatory activities could inform further development of cowpea breeding strategies for north and south regions of Burkina Faso.

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Genetic diversity of the European pond turtle (Emys orbicularis) in the South-West region of Hungary – first results

Amphibia-Reptilia ◽

10.1163/156853811x610744 ◽

2011 ◽

Vol 32 (4) ◽

pp. 519-526 ◽

Cited By ~ 1

Author(s):

Zsigmond Jeney ◽

Marcell Molnár ◽

István Magyary ◽

István Lehoczky ◽

Attila Zsolnai ◽

...

Keyword(s):

Genetic Diversity ◽

Lake Balaton ◽

Natural Habitats ◽

Emys Orbicularis ◽

Pond Turtle ◽

South West ◽

Ecological Corridor ◽

Catchment Areas ◽

First Results ◽

Drava River

AbstractA set of five polymorphic microsatellite markers developed in Emydoidea blandingii was characterized for crossspecies amplification in the European pond turtle, Emys orbicularis. The markers were tested for polymorphism in a total of 155 turtles sampled in four natural habitats in the Danube-Drava National Park, South-West Hungary in order to determine the genetic diversity of European pond turtle populations and to check the functionality of existing ecological corridors in the region. The number of alleles varied from 5 to 24. Observed heterozygosity was moderate (0.43-0.55), while the level for expected heterozygosity ranged from 0.76 to 0.80. Significant heterozygote deficit was found in the populations accompanied by a low degree of genetic differentiation (FST ranges from 0.0166 to 0.0652). Wahlund effect was demonstrated in two populations. The ecological corridor between two water catchment areas (Lake Balaton and Drava River) fulfils its role only partially.

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