There are few concepts that have been used across disciplines; one of them is natural selection. The impact that this process has on parasite genetic diversity is reviewed here by discussing examples on drug resistance and vaccine antigens. Emphasis is made on how mechanisms need to be addressed rather than associations, and how such investigations were out of reach of biomedical researchers only a decade ago.
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http://dx.doi.org/10.1016/j.pt.2004.06.002 | DOI Listing |
Front Plant Sci
January 2025
Institut Sénégalais de Recherches Agricoles (ISRA/Centre d'Etude Regional pour l'Amélioration de l'Adaptation à la Sécheresse (CERAAS), Thies, Senegal.
Early leaf spot (ELS), caused by (syn. ), is a highly damaging peanut disease worldwide. While there are limited sources of resistance in cultivated peanut cultivars, wild relatives carry alleles for strong resistance, making them a valuable strategic resource for peanut improvement.
View Article and Find Full Text PDFPotato is a versatile food crop and major component of human nutrition worldwide. Model calculations and computer simulations can be used to optimize the resource allocation in potato breeding programs but require quantitative genetic parameters. The objectives of our study are to (i) estimate quantitative genetic parameters of the most important phenotypic traits in potato breeding programs, (ii) compare the importance of inter- vs.
View Article and Find Full Text PDFJACS Au
January 2025
Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
Polyketide synthases (PKSs) are multidomain enzymatic assembly lines that biosynthesize a wide selection of bioactive natural products from simple building blocks. In contrast to their -acyltransferase (AT) counterparts, -AT PKSs rely on stand-alone ATs to load extender units onto acyl carrier protein (ACP) domains embedded in the core PKS machinery. -AT PKS gene clusters also encode stand-alone acyl hydrolases (AHs), which are predicted to share the overall fold of ATs but function like type II thioesterases (TEs), hydrolyzing aberrant acyl chains from ACP domains to promote biosynthetic efficiency.
View Article and Find Full Text PDFBiol Methods Protoc
December 2024
School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, P.R. China.
Peroxidase DNAzymes are single-stranded, stable G-quadruplexes structures that exhibit catalytic activity with cofactor hemin. This class of DNAzymes offers several advantages over traditional protein and RNA catalysts, including thermal stability, resistance to hydrolysis, and easy of synthesis in the laboratory. However, their use in medicine, biology, and chemistry is limited due to their low catalytic rates.
View Article and Find Full Text PDFIJID Reg
December 2024
The Kuvin Center for the Study of Infectious and Tropical Diseases, & Department of Microbiology and Molecular Genetics, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
Malaria and hypertension are seemingly unrelated communicable and non-communicable diseases, both highly pervasive in the global south. There is a debate about the potential connection between these two disorders beyond any obvious factors. The emerging evidence suggests an emerging genetic selection pressure for hypertension in malaria-endemic regions.
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