Gene complementarity among various sources of resistance to greenbug biotype E was assessed. Analysis of the F2 generation of crosses between susceptible and resistant parents (mating 1) and among sources of resistance (mating 2) suggested that resistance in sorghum to greenbug biotype E was comp...
Dixon, Alfred G.O.
,
Bramel-Cox, P.J.
,
Harvet, T.L.
,
[Complementarity of genes for resistance to greenbug [Schizaphis graminum (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench]]
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Complementarity of genes for resistance to greenbug [Schizaphis graminum (Rondani)], biotype E, in sorghum [Sorghum bicolor (L.) Moench]
A genetic control flock of Merino sheep consisting of 160 ewes and 16 rams was established in 1969 at the Tygerhoek Experimental Farm near Riviersonderend in the South Western Districts of South Africa. In 1976 it was extended to 200 ewes and 20 rams. Ewes are replaced by their second ewe lamb wh...
Heydenrych, H.J.
,
Vosolo, L.P.
,
Plessis, J.J. du
,
Meissenheimer, D.J.B.
,
[Maintaining genetic stability in a control flock of South African Merino sheep]
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Maintaining genetic stability in a control flock of South African Merino sheep
1. Coenagrion mercuriale is one of Europe's most threatened damselflies. There is concern for the long-term persistence of many of its U.K. colonies because adult lifetime movement is limited, making isolated populations susceptible to extinction.
2. Using 14 microsatellite loci we characterised ...
Watts, P.C.
,
Saccheri, I.J.
,
Kemp, Stephen J.
,
Thompson, D.J.
,
[Population structure and the impact of regional and local habitat isolation upon levels of genetic diversity of the endangered damselfly Coenagrion mercuriale (Odonata: Zygoptera)]
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Population structure and the impact of regional and local habitat isolation upon levels of genetic diversity of the endangered damselfly Coenagrion mercuriale (Odonata: Zygoptera)
Artificial selection towards a desired phenotype/trait has modified the genomes of livestock dramatically that generated breeds that greatly differ in morphology, production and environmental adaptation traits. Angus cattle are among the famous cattle breeds developed for superior beef quality. T...
Taye, M.
,
Joon Yoon
,
Dessie, Tadelle
,
Seoae Cho
,
Sung Jong Oh
,
Hak-Kyo Lee
,
Heebal Kim
,
[Deciphering signature of selection affecting beef quality traits in Angus cattle]
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Deciphering signature of selection affecting beef quality traits in Angus cattle
We investigated mitochondrial DNA (mtDNA) sequence polymorphism of six morphologically diverse domestic donkey (Equus asinus) populations in Ethiopia. These populations include: Abyssinian (AB), Afar (AF), Hararghe (HR), Ogaden (OG), Omo (OM) and Sinnar (SI). Genetic relationships and other diver...
Kefena, E.
,
Dessie, Tadelle
,
Tegegne, Azage
,
Beja-Pereira, A.
,
Kurtu, M.Y.
,
Rosenbom, S.
,
Han Jianlin
,
[Genetic diversity and matrilineal genetic signature of native Ethiopian donkeys (Equus asinus) inferred from mitochondrial DNA sequence polymorphism]
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Genetic diversity and matrilineal genetic signature of native Ethiopian donkeys (Equus asinus) inferred from mitochondrial DNA sequence polymorphism
Five Mycoplasma strains from wild Caprinae were analyzed: four from Alpine ibex (Capra ibex) which died at the Berlin Zoo between 1993 and 1994, one from a Rocky Mountain goat collected in the USA prior to 1987. These five strains represented a population different from the populations belonging ...
Jores, Joerg
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Fischer, A.
,
Sirand-Pugnet, P.
,
Thomann, A.
,
Liebler-Tenorio, E.M.
,
Schnee, C.
,
Santana-Cruz, I.
,
Heller, M.
,
Frey, J.
,
[Mycoplasma feriruminatoris sp. nov., a fast growing Mycoplasma species isolated from wild Caprinae]
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Mycoplasma feriruminatoris sp. nov., a fast growing Mycoplasma species isolated from wild Caprinae
The presence of antibodies against African swine fever (ASF), a complex fatal notifiable OIE disease of swine, is always indicative of previous infection, since there is no vaccine that is currently used in the field. The early appearance and subsequent long-term persistence of antibodies combine...
Gallardo, C.
,
Soler Garzón, Alvaro
,
Nieto, R.
,
Carrascosa, A.L.
,
Mia, G.M. de
,
Bishop, Richard P.
,
Martins, C.
,
Fasina, F.O.
,
Couacy-Hyman, E.
,
Heath, L.
,
Pelayo, V.
,
Martin, E.
,
Simon, A.
,
Martin, R.
,
Okurut, A.R.
,
Lekolol, I.
,
Okoth, Edward A.
,
Arias, Marisa
,
[Comparative evaluation of novel African swine fever virus (ASF) antibody detection techniques derived from specific ASF viral genotypes with the OIE internationally prescribed serological tests]
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Comparative evaluation of novel African swine fever virus (ASF) antibody detection techniques derived from specific ASF viral genotypes with the OIE internationally prescribed serological tests
A genome-wide scan was performed to detect quantitative trait loci (QTL) for resistance to the gastrointestinal nematode Haemonchus contortus in a double backcross population of Red Maasai and Dorper sheep. The mapping population comprised six sire families, with 1026 lambs in total. The lambs we...
Marshall, Karen
,
Mugambi, J.M.M.
,
Nagda, S.M.
,
Sonstegard, T.S.
,
Tassell, C.P. van
,
Baker, R.L.
,
Gibson, John P.
,
[Quantitative trait loci for resistance to Haemonchus contortus artificial challenge in Red Maasai and Dorper sheep of East Africa]
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Quantitative trait loci for resistance to Haemonchus contortus artificial challenge in Red Maasai and Dorper sheep of East Africa
With the development of several new technologies using synthetic biology, it is possible to engineer genetically intractable organisms including Mycoplasma mycoides subspecies capri (Mmc), by cloning the intact bacterial genome in yeast, using the host yeast’s genetic tools to modify the cloned g...
Jembere, T.
,
Haile, Aynalem
,
Abegaz, S.
,
Duguma, G.
,
Dessie, Tadelle
,
[Estimation of genetic parameters for growth traits at various ages in Horro sheep at Bako Agricultural Research Center]
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Estimation of genetic parameters for growth traits at various ages in Horro sheep at Bako Agricultural Research Center