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Browsing Research Articles (Genetics) by Issue Date
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Du Plessis, Mariette; Roux, Carl Z.
(South African Society for Animal Science, 1998)
In this study economic weights for production and functional traits of the Holstein Friesians in South Africa were calculated using a simulation model. The production traits were milk, butterfat, protein and lactose yield ...
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Nephawe, K.A.; Neser, F.W.C.; Roux, Carl Z.; Theron, H.E.; Van der Westhuizen, J.; Erasmus, G.J.
(South African Society for Animal Science, 1999)
Die moontlike interaksie tussen vaar en vier ekologiese streke waarin Bonsmara
beeste in Suid-Afrika hoofsaaklik voorkom is ondersoek. Geboorte en speenrekords
van 43 628 geregistreerde kalwers wat gebore is tussen 1976 ...
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Du Plessis, Mariette; Roux, Carl Z.
(South African Society for Animal Science, 1999)
In South Africa the exact breeding goal for Holstein Friesians still needs to be determined. This means that the traits, which should be most important in selection have to be identified. One method to identify these traits ...
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Cortinas, Maria-Noel; Burgess, Treena I.; Dell, Bernard (Bernie); Xu, Daping; Crous, Pedro W.; Wingfield, Brenda D.; Wingfield, Michael J.
(Elsevier, 2006-02)
Coniothyrium zuluense causes a serious canker disease of Eucalyptus in various parts of the world. Very little is known regarding the taxonomy of this asexual fungus, which was provided with a name based solely on morphological ...
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Crowe, Timothy M.; Bowie, Rauri C.K.; Bloomer, Paulette; Mandiwana, Tshifhiwa G.; Hedderson, Terry A.J.; Randi, Ettore; Pereira, Sergio L.; Wakeling, Julia
(Blackwell, 2006-12)
The phylogenetic relationships, biogeography and classification of, and morphobehavioral (M/B) evolution in, gamebirds (Aves: Galliformes) are investigated. In-group taxa (rooted on representatives of the Anseriformes) ...
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Erasmus, Johannes Christoff; Van Noort, S.; Jousselin, E.; Greeff, Jacobus Maree
(Blackwell, 2007-01)
The obligate mutualism between fig trees and their fig wasp pollinators, together with the general tendency for each host species to be pollinated by one fig wasp species, led to the hypothesis that these two lineages have ...
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Slippers, Bernard; Smit, W.A.; Crous, Pedro W.; Coutinho, Teresa A.; Wingfield, Brenda D.; Wingfield, Michael J.
(Blackwell, 2007-02)
Species of Botryosphaeria are well-recognized pathogens of pome and stone fruit trees. The taxonomy of these fungi, however, has been confused in the past. Recent taxonomic changes to the Botryosphaeriaceae further influence ...
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Maier, Wolfgang D.; Wingfield, Brenda D.; Mennicken, Mechthilde; Wingfield, Michael J.
(Elsevier, 2007-02)
The phylogenetic validity of Puccinia and Uromyces, Pucciniaceae, and closely related genera was evaluated using nucLSU rDNA sequences. Using a wide range of rust species with different life cycles and with different host ...
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Nakabonge, Grace; Gryzenhout, Marieka; Wingfield, Brenda D.; Wingfield, Michael J.; Roux, Jolanda
(Academy of Science of South Africa, 2007-05)
Chrysoporthe cubensis is an important fungal pathogen of Eucalyptus species worldwide. The fungus is also known on many other hosts, all residing in the order Myrtales. Previous studies have suggested that Chr. Cubensis ...
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Jacobs, Adriaana; Coutinho, Teresa A.; Wingfield, Michael J.; Ahumada, Rodrigo; Wingfield, Brenda D.
(Academy of Science of South Africa, 2007-05)
Fusarium circinatum is the causal agent of the pine disease commonly referred to as pitch canker. During 2001, a Fusarium species was isolated from dying Pinus radiata clonal hedges in various forestry nurseries in Chile ...
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Oberholster, Paul Johan; Botha, Anna-Maria; Cloete, T.E. (Thomas Eugene), 1958-
(Blackwell, 2007-06)
This paper describes the results of the investigation of a shallow urban lake before, and a second year after, restoration to determine the effects of aeration and bottom-sediment removal on the trophic state and environmental ...
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Bogale, Mesfin Azene; Wingfield, Brenda D.; Wingfield, Michael J.; Steenkamp, Emma Theodora
(Elsevier, 2007-06-27)
Please open article to view abstract
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Coetzee, Vinet; Barrett, Louise; Greeff, Jacobus Maree; Henzi, S. Peter; Perrett, David Ian; Wadee, Ahmed A.
(Public Library of Science, 2007-07)
Three adaptive hypotheses have been proposed to explain the link between the human leucocyte antigen (HLA) genes, health measures and facial attractiveness: inbreeding avoidance, heterozygote advantage and frequency-dependent ...
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De Vos, Lieschen; Myburg, Alexander Andrew; Wingfield, Michael J.; Desjardins, Anne E.; Gordon, Thomas R. (Tom); Wingfield, Brenda D.
(Elsevier, 2007-08)
The Gibberella fujikuroi complex includes many plant pathogens of agricultural crops and trees, all of which have anamorphs assigned to the genus Fusarium. In this study, an interspecific hybrid cross between Gibberella ...
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Oberholster, Paul Johan; Botha, Anna-Maria
(Academic Journals, 2007-08)
Toxic freshwater cyanobacterial blooms are potential health hazards in water supply reservoirs and therefore predicting bloom events is an important goal of monitoring fresh water programmes. The recent identification of ...
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Hurley, Brett Phillip; Slippers, Bernard; Wingfield, Michael J.
(Blackwell, 2007-08)
1 Sirex noctilio has resulted in one of the most damaging biological invasions of pine forestry in the southern hemisphere.
2 An intensive, integrated control programme has been developed for this pest and is generally ...
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Greeff, Jacobus Maree
(Blackwell, 2007-09)
It is often assumed that Afrikaners stem from a small number of Dutch immigrants. As a result they should be genetically homogeneous, show founder effects and be rather inbred. By disentangling my own South African pedigree, ...
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Swartz, Ernst Roelof; Skelton, Paul Harvey; Bloomer, Paulette
(Blackwell, 2007-12)
AIM: The phylogeography of the two closely related species Pseudobarbus afer and Pseudobarbus phlegethon was investigated to assess the association of evolutionary processes, inferred from mitochondrial DNA (mtDNA) sequence ...
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Dos Santos, S.M.R.; Klopper, Arrie Willem; Oosthuizen, Carel Jakobus; Bloomer, Paulette
(Blackwell, 2008)
Eight polymorphic microsatellite loci, containing simple tetranucleotide repeats, were isolated de novo from a Pomatomus saltatrix partial genomic library using the fast isolation by amplified fragment length polymorphism ...
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Cholo, Moloko C.; Jansen van Rensburg, Elizabeth; Anderson, Ronald
(Federation of Infectious Diseases Societies of South Africa, 2008)
Mycobacterium tuberculosis (MTB) is a formidable microbial pathogen which uses multiple mechanisms to subvert host immune defences. These include the effective, protective barrier presented by the outer waxy coat, intracellular ...