9 aroma constituents were found to be associated with tsHap1_2. ResearchGate has not been able to resolve any citations for this publication.Join ResearchGate to find the people and research you need to help your work.The main objectives: 1. enhance the contribution of aquaculture sectors and scientific and technological research for poverty reduction strategies in Africa, economic growth and social development Evaluation of water quality used in marine aquaculture at Lake Manzala, and how it affects the fish production in this region.
The key to the successful synthesis was the use of a solubilising tag attached through a hydrolysable linker.Antifreeze proteins (AFPs) are specific proteins that are able to lower the freezing point of aqueous solutions relative to the melting point. Irrespective of testing method. Viabilities of the reciprocal F1 hybrids were not significantly different.
Population genetics studies using microsatellites, and data on their molecular dynamics, are on the increase. http://www.fao.org/fishery/culturedspecies/Oreochromis_niloticus/en Biology and Evolution. improved resistance to pest and disease. To develop molecular markers for breeding of Chinese cabbage lines with high carotenoid content and to isolate the candidate gene underlying carotenoid synthesis, we performed fine mapping of the orange locus in a F2S4 mapping population. 62 simple-sequence repeat (SSR) markers which come from a high density tobacco SSR linkage group were scanned.
O. mossambicuswas the most cold-sensitive group,followed by the F2, and the F1 which wassimilar to O. aureus.
These tests will allow selection of superior individuals and/or families which can subsequently be evaluated for their breeding value.The short-term test can be conducted in 8–12 h compared with conventional and ambient cooling methods which require several days to several weeks. We also support our hypothesis by studying the effect of the addition of the osmolyte sodium citrate.Viability under ambient winter temperatures in Alabama was assessed for Auburn University-Egypt and Auburn University-Ivory Coast strains of Tilapia nilotica and their F1, F2, and four backcross hybrids. 2. improve the contribution of aquaculture sector in the implementation of food security and food safety policy. For the winter, we've been keeping them around 65 F (17 C) and will warm them back up later in the season.
current study form part of the PhD thesis of the first author. Environmental physiology of Tilapias. Viabilities of the reciprocal F2 hybrids were not significantly different. Although, to some extent, biomass yields are dependent on environmental constraints, increased yield can be achieved through the development of genotypes with improved seasonal adaptation, tolerance to unfavorable environmental conditions, and Orange head Chinese cabbage accumulates significant amounts of carotenoids with enhanced nutritional quality. Translocations have spread the species to refuges, such as dams, where the water remains a few degrees warmer than those in shallow river pools.Cold tolerance is also increased by high salinity tolerance; this enables large adult fish to survive at 9,5°C in places in the Eastern Cape.However, O. mossambicus from warmer regions appears to have a lower tolerance for cold; a 1978 cold front in KZN, during which water temperatures fell below 13°C for some days, caused mass mortalities.Nile tilapia (O. niloticus) and red breast tilapia T. rendalli, (now sometimes called Coptodon rendalli), are far less cold-tolerant, and die in the wild between 12°C and 13°C.These differences in cold tolerance are pivotal to establishing sanctuaries for indigenous tilapia species, as these populations can be thermally isolated from invasion by exotic species.Nicholas James is an ichthyologist and hatchery owner.
In addition, the genotyping of UNH118 SSR candidate associated to the cold tolerance trait was studied.
Therefore, the associated SSR loci and haplotype with aroma constituents are both beneficial for marker assistant selection in tobacco leaf quality improvement. Observed mean viabilities of the F1 hybrids were intermediate between those of the parental strains. Yield improvements have been modest by this method. Combining the p-values from the single tests (Fisher's method) revealed an overall significant p-value for deviation from the Hardy-Weinberg expectations at Gmo132 but not at Gmo2. Null alleles may be disturbing for population studies, even though their presence can be detected through careful population analyses, while homoplasy seems of little concern, at least over short evolutionary scales.
Nonetheless, it remains true that microsatellites may be considered as good, neutral mendelian markers.Lower-lethal-temperature bioassays were performed with blue tilapias Tilapia aurea to test the utility of a lethal-dose model for forecasting cold-kill events.
©, 2014, State Tobacco Monopoly Bureau and China Tobacco Society.