7 Works

Data from: Intraspecific variations in life history traits of two pecky rice bug species from Japan: mapping emergence dates and number of annual generations

Kazuhisa Yamasaki, Ken Tabuchi, Akihiko Takahashi, Takeshi Osawa, Akira Yoshioka, Yasushi Ishigooka, Shigeto Sudo & Mayura Takada
The mirid bugs Stenotus rubrovittatus and Trigonotylus caelestialium, which cause pecky rice, have become a threat to rice cultivation in Asia. Damage caused by these pests has rapidly become frequent since around 2000 in Japan. Their expansion pattern is not simple, and predicting their future spread remains challenging. Some insects with wide ranges have locally adapted variations in life-history traits. We performed laboratory rearing experiments to assess the geographical scale of intraspecific variations in life-history...

Adaptive potential of Coffea canephora from Uganda in response to climate change

Sinara De Aquino, Catherine Kiwuka, Rémi Tournebize, Pierre Marraccini, Cédric Mariac, Kévin Bethune, Marie Couderc, Philippe Cubry, Alan Andrade, Maud Lepelley, Olivier Darracq, Dominique Crouzillat, Niels Anten, Pascal Musoli, Stéphanie Manel, Olivier François, Yves Vigouroux, Alexandre De Kochko, Clément Gain & Valérie Poncet
Understanding vulnerabilities of plant populations to climate change could help preserve their biodiversity and reveal new elite parents for future breeding programs. To this end, landscape genomics is a useful approach for assessing putative adaptations to future climatic conditions, especially in long-lived species such as trees. We conducted a population genomics study of 207 Coffea canephora trees from seven forests along different climate gradients in Uganda. For this, we sequenced 323 candidate genes involved in...

Data from: Genetic diversity and population structure of Trypanosoma brucei in Uganda: implications for the epidemiology of sleeping sickness and Nagana

Richard Echodu, Mark J. Sistrom, Rosemary Bateta, Grace Murilla, Loyce Okedi, Serap Aksoy, Chineme Enyioha, John Enyaru, Elizabeth Opiyo, Wendy Gibson, Caccone Adalgisa, Mark Sistrom & Adalgisa Caccone
Background: While Human African Trypanosomiasis (HAT) is in decline on the continent of Africa, the disease still remains a major health problem in Uganda. There are recurrent sporadic outbreaks in the traditionally endemic areas in south-east Uganda, and continued spread to new unaffected areas in central Uganda. We evaluated the evolutionary dynamics underpinning the origin of new foci and the impact of host species on parasite genetic diversity in Uganda. We genotyped 269 Trypanosoma brucei...

Stable species boundaries despite ten million years of hybridization in tropical eels

Julia Barth, Chrysoula Gubili, Michael Matschiner, Ole Tørresen, Shun Watanabe, Bernd Egger, Yu-San Han, Eric Feunteun, Ruben Sommaruga, Robert Jehle & Robert Schabetsberger
Genomic evidence is increasingly underpinning that hybridization between taxa is commonplace, challenging our views on the mechanisms that maintain their boundaries. Here, we focus on seven catadromous eel species (genus Anguilla), and use genome-wide sequence data from more than 450 individuals sampled across the tropical Indo-Pacific, morphological information, and three newly assembled draft genomes to compare contemporary patterns of hybridization with signatures of past gene flow across a time-calibrated phylogeny. We show that the seven...

Data from: Combining landscape genomics and ecological modelling to investigate local adaptation of indigenous Ugandan cattle to East Coast fever

Elia Vajana, Mario Barbato, Licia Colli, Marco Milanesi, Estelle Rochat, Enrico Fabrizi, Christopher Mukasa, Marcello Del Corvo, Charles Masembe, Vincent B. Muwanika, Fredrick Kabi, Tad Stewart Sonstegard, Heather Jay Huson, Riccardo Negrini, NextGen Consortium, Stéphane Joost & Paolo Ajmone-Marsan
East Coast fever (ECF) is a fatal sickness affecting cattle populations of eastern, central, and southern Africa. The disease is transmitted by the tick Rhipicephalus appendiculatus, and caused by the protozoan Theileria parva parva, which invades host lymphocytes and promotes their clonal expansion. Importantly, indigenous cattle show tolerance to infection in ECF-endemically stable areas. Here, the putative genetic bases underlying ECF-tolerance were investigated using molecular data and epidemiological information from 823 indigenous cattle from Uganda....

Whole genome resequencing data enables a targeted SNP panel for conservation and aquaculture of Oreochromis cichlid fishes

Adam Ciezarek, Antonia Ford, Graham Etherington, Nasser Kasozi, Milan Malinsky, Tarang Mehta, Luca Penso-Dolfin, Benjamin Ngatunga, Asilatu Shechonge, Rashid Tamatamah, Wilfried Haerty, Federica Di Palma, Martin Genner & Turner George
Cichlid fish of the genus Oreochromis form the basis of the global tilapia aquaculture and fisheries industries. Broodstocks for aquaculture are often collected from wild populations, which in Africa may be from locations containing multiple Oreochromis species. However, many species are difficult to distinguish morphologically, hampering efforts to maintain good quality farmed strains. Additionally, non-native farmed tilapia populations are known to be widely distributed across Africa and to hybridize with native Oreochromis species, which themselves...

A Mix of Old British and Modern European Breeds: Genomic Prediction of Breed Composition of Smallholder Pigs in Uganda

Brian Martin Babigumira, Johann Sölkner, Gábor Mészáros, Christina Pfeiffer, Craig R. G. Lewis, Emily Awuor Ouma, Maria Wurzinger & Karen Marshall
Pig herds in Africa comprise genotypes ranging from local ecotypes to commercial breeds. Many animals are composites of these two types and the best levels of crossbreeding for particular production systems are largely unknown. These pigs are managed without structured breeding programs and inbreeding is potentially limiting. The objective of this study was to quantify ancestry contributions and inbreeding levels in a population of smallholder pigs in Uganda. The study was set in the districts...

Registration Year

  • 2022
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Resource Types

  • Dataset
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Affiliations

  • National Agricultural Research Organisation
    7
  • University of Basel
    2
  • Makerere University
    2
  • University of Bristol
    2
  • Bangor University
    1
  • Tanzania Fisheries Research Institute
    1
  • Recombinetics (United States)
    1
  • Tokyo Metropolitan University
    1
  • Earlham Institute
    1
  • Silence Therapeutics (Germany)
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