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Spittlebugs (Homoptera: Cercopidae) are important pests of forage grasses in the genus Brachiaria (Trin.) Griseb. throughout the neotropics. Results of recurrent selection on resistance to spittlebugs in a synthetic brachiariagrass population are reported. The population was synthesized by recomb...


Miles, John W.Cardona Mejía, CésarSotelo, Guillermo[Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species]Recurrent selection in a synthetic brachiariagrass population improves resistance to three spittlebug species
Rao, Idupulapati M.Miles, John W.García, R.Ricaurte Oyola, José Jaumer[Selección de híbridos de Brachiaria con resistencia al aluminio]Selección de híbridos de Brachiaria con resistencia al aluminio

Use of genetic resistance is the most practical and economic way to manage anthracnose of common bean. Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the path...


Mahuku, George S.Jara, Carlos E.Cajiao V., César HernandoBeebe, Stephen E.[Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools]Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools
Aguirre, L.M.Cardona, C.Miles, John W.Sotelo, G.[Characterization of resistance to adult spittlebugs (Hemiptera:Cercopidae) in Brachiaria spp.]Characterization of resistance to adult spittlebugs (Hemiptera:Cercopidae) in Brachiaria spp.

Comparative resistance to different isolates of Ascaridia galli was investigated in a local chicken breed from Jordan (LC) and in the Lohmann LSL white chicken (LW) strain. In two trials, birds of LC and LW were inoculated orally at 1-day old with 250 embryonated A. galli eggs. In the first trial...


Abdelqader, A.Gauly, M.Wollny, C.B.A.[Response of two breeds of chickens to Ascaridia galli infections from two geographic sources]Response of two breeds of chickens to Ascaridia galli infections from two geographic sources

Gene-knockout mice have been extensively used in the study of several malaria-induced pathologies. Some investigators believe that the deficient, infected mice mimic disease aspects produced in the absence of the target gene, but others believe that the deficient mice models mainly explain the ef...


Hernández Valladares, M.Naessens, JanIraqi, F.A.[Gene-knockout mice in malaria research: Useful or misleading?]Gene-knockout mice in malaria research: Useful or misleading?

Murine models have proved to be excellent tools in the support of studies of the human genetic bases of malaria resistance and have enabled the mapping of 12 resistance loci, eight of them controlling parasitic levels and four controlling cerebral malaria. Further studies using this method have i...


Hernández Valladares, M.Naessens, JanIraqi, F.A.[Genetic resistance to malaria in mouse models]Genetic resistance to malaria in mouse models

The host-protective immune response to infection with gastrointestinal (GI) nematodes involves a range of interacting processes that begin with recognition of the parasite's antigens and culminate in an inflammatory reaction in the intestinal mucosa. Precisely which immune effectors are responsib...


Behnke, J.M.Iraqi, F.A.Menge, D.Baker, R.L.Gibson, John P.Wakelin, D.[Chasing the genes that control resistance to gastrointestinal nematodes]Chasing the genes that control resistance to gastrointestinal nematodes

Since the publication of the mouse genome, attention has focused on the strains that were selected for sequencing. In this paper we report the results of experiments that characterized the response to infection with the murine gastrointestinal nematode Heligmosomoides polygyrus of eight new strai...


Behnke, J.M.Mugambi, J.M.M.Clifford, S.Iraqi, F.A.Baker, R.L.Gibson, John P.Wakelin, D.[Genetic variation in resistance to repeated infections with Heligmosomoides polygyrus bakeri, in inbred mouse strains selected for the mouse genome project]Genetic variation in resistance to repeated infections with Heligmosomoides polygyrus bakeri, in inbred mouse strains selected for the mouse genome project

A study was carried out from 1994 to 1996 to compare the resistance to naturally acquired gastrointestinal (GI) nematode infections (predominantly Haemonchus contortus) of 88 Galla and 114 Small East Africa (SEA) goats (does) in the sub-humid coastal region of Kenya. Live weights (LWT), blood pac...


Baker, R.L.Mwamachi, D.M.Audho, James O.Aduda, Eric O.Thorpe, W.R.[Resistance of Galla and Small East African goats in the sub-humid tropics to gastrointestinal nematode infections and the peri-parturient rise in faecal egg counts]Resistance of Galla and Small East African goats in the sub-humid tropics to gastrointestinal nematode infections and the peri-parturient rise in faecal egg counts

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