Department of Genetics
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Phylogeography, genetic diversity, and population structure of Nile crocodile populations at the fringes of the southern African distribution
(Public Library of Science, 2018)Nile crocodiles are apex predators widely distributed in sub-Saharan Africa that have been viewed and managed as a single species. A complex picture of broad and fine-scale phylogeographic patterns that includes the ... -
The complete mitochondrial genome and phylogenetic position of the leopard catshark, Poroderma pantherinum
(Taylor & Francis Open, 2018)We present the first mitochondrial genome of a South African endemic catshark, Poroderma pantherinum. The complete mitogenome is 16,686 bp in length, comprising 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and ... -
Modification of cassava root starch phosphorylation enhances starch functional properties
(Frontiers Media, 2018)Cassava (Manihot esculenta Crantz) is a root crop used as a foodstuff and as a starch source in industry. Starch functional properties are influenced by many structural features including the relative amounts of the two ... -
Repression of sex4 and like sex four2 orthologs in potato increases tuber starch bound phosphate with concomitant alterations in starch properties physical
(Frontiers Media, 2018-07-23)To examine the roles of starch phosphatases in potatoes, transgenic lines were produced where orthologs of SEX4 and LIKE SEX FOUR2 (LSF2) were repressed using RNAi constructs. Although repression of either SEX4 or LSF2 ... -
Continuation of a pre-breeding program for improving wheat yield
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Wheat is a crop that has been cultivated around the globe for centuries and forms a substantial portion of the population’s diet, particularly in third world countries. Food security is under major ... -
Breeding for improved biomass yield in triticale
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Triticale (x Triticosecale Wittmack ex. A. Camus, AABBRR, 2n=6x=42) is the first manmade wheat developed through distant hybridization between rye [Secale cereale, RR, 2n=2x=14] and bread wheat (Triticum ... -
An integrative analysis of genetics, brain structure, and childhood trauma in antipsychotic treatment response : toward a unified view of treatment outcome in schizophrenia
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Schizophrenia is a debilitating neuropsychiatric disorder affecting approximately 1% of the global population. Unfortunately, antipsychotic treatment is ineffective in 50% of patients. The complex, ... -
Investigating the role of miRNA-mediated regulation in antipsychotic treatment response in a South African first-episode schizophrenia cohort
(Stellenbosch : Stellenbosch Univerity, 2020-03)ENGLISH ABSTRACT: Although considerable advances in genomics research, with the likes of Genome-Wide Association Studies (GWAS), have uncovered vast quantities of genomic data regarding the genetic basis of many neuropsychiatric ... -
Enhancing drought and osmotic stress tolerance by overexpressing α-acetolactate decarboxylase and acetoin 2,3-butanediol dehydrogenase in planta
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: The effect of certain rhizosphere colonising bacteria on plant growth has been extensively exploited in agriculture since the green revolution of 1950. The bacteria symbiotically colonise the rhizosphere, ... -
Characterisation of SNPs associated with growth rate in dusky kob (Argyrosomus japonicus), using exome sequencing
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Marine living-resources such as dusky kob, (Argyrosomus japonicus) are particularly vulnerable to overfishing as this species has been targeted for decades by commercial, recreational and subsistence ... -
Genetic and phenotypic characterisation of commercial dusky kob (Argyrosomus japonicus) cohorts
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Argyrosomus japonicus (dusky kob) is a large sciaenid finfish indigenous to South Africa, and as an emerging aquaculture species, current production practices rely on mass spawning of wild progenitors to ... -
Confirmation of the effectiveness and genetic positions of disease resistance loci in ‘Kishmish Vatkana’ (Ren1) and ‘Villard Blanc’ (Ren3 and Rpv3)
(South African Society for Enology and Viticulture, 2018)This study aimed to validate the effectiveness and to genetically characterise the fungal disease resistance genes of ‘Kishmish Vatkana’ and ‘Villard Blanc’ in South Africa using microsatellite (SSR) markers and a ... -
Analysis of the relationship between glycogen turnover and cell size in Escherichia coli
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Glycogen represents an important carbon energy store in organisms across all domains of life. Under permissible conditions, excess environmental glucose is incorporated into glycogen by the Gram-negative ... -
Species identification, lifestyles and mitogenomics of the elusive wasp assemblage associated with wild and cultivated olives in the Western Cape
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: While the international olive industry is greatly affected by the olive fruit fly (Bactrocera oleae), South African commercial crops are marginally affected. The rich assemblage of native parasitoid wasps ... -
Mutations in glucan, water dikinase affect starch degradation and gametophore development in the moss physcomitrella patens
(Nature Research, 2019)The role of starch degradation in non-vascular plants is poorly understood. To expand our knowledge of this area, we have studied this process in Physcomitrella patens. This has been achieved through examination of the ... -
The structure and function of the global citrus rhizosphere microbiome
(Nature Research (part of Springer Nature), 2018)Citrus is a globally important, perennial fruit crop whose rhizosphere microbiome is thought to play an important role in promoting citrus growth and health. Here, we report a comprehensive analysis of the structural and ... -
Development of alternative diagnostic protocols for Candidatus Phytoplasma asteris and Coniella granati Sacc. (Syn. Pilidiella granati)
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The Republic of South Africa (RSA) is an integral part of the global fruit exporting chain. Currently, South Africa is ranked eighth in the world in wine production, exporting 40% of all locally produced ... -
Starch trek : the search for yield
(Frontiers Media, 2019)Starch is a plant storage polyglucan that accumulates in plastids. It is composed of two polymers, amylose and amylopectin, with different structures and plays several roles in helping to determine plant yield. In leaves, ... -
Population genetics of Southern Hemisphere tope shark (Galeorhinus galeus) : Intercontinental divergence and constrained gene flow at different geographical scales
(Public Library of Science, 2017)The tope shark (Galeorhinus galeus Linnaeus, 1758) is a temperate, coastal hound shark found in the Atlantic and Indo-Pacific oceans. In this study, the population structure of Galeorhinus galeus was determined across the ... -
Modulation of the Vitis vinifera cv. ‘Chardonnay’ microRNA and mRNA transcriptomes in response to aster yellows phytoplasma-infection
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Aster yellows (AY) phytoplasmas are part of a group of cell wall-less plant pathogenic bacteria responsible for a detrimental disease known as grapevine yellows (GY). The molecular mechanisms of AY ...
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