Genetic mapping and positional cloning.
نویسندگان
چکیده
Genetic mapping and positional cloning of genetically complex traits in the laboratory rat (Rattus norvegicus) has recently led to the identification of various susceptibility genes in different rat models. Rat genetics has benefited from revolutionary advances in molecular biology, genetics, genomics and informatics and provide an unparalleled resource for molecular genetic investigation of mammalian physiopathology and its underlying complex genetic architecture. In this review, we will consider different strategies that are being used in the successful positional cloning of rat complex trait genes in the context of recent progress in rodent and human genetics.
منابع مشابه
Linkage disequilibrium and the mapping of human disease genes
Identification of human disease genes can be accomplished by two strategies: functional cloning and positional cloning. Genetic mapping is the localization of genes underlying phenotypes on the basis of correlation with DNA variation, without the need for prior hypotheses about biological function and the simplest form, called linkage analysis. The ability to clone and sequence DNA made it poss...
متن کاملPositional cloning works! Identification of genes that cause IDDM.
The strategy of positional cloning has been highly successful in identifying a number of single gene disorders that exhibit clear Mendelian patterns of inheritance. Positional cloning of insulin-dependent diabetes mellitus (IDDM) has been assisted by the expansion of molecular genetic tools and highly informative markers, so that new IDDM susceptibility genes are being uncovered. The ultimate c...
متن کاملQuantitative Trait Loci Mapping
With the increasing number of polymorphic markers identified on the genetic map, positional cloning has become an extremely powerful tool, permitting the linkage and identification of a large number of disease genes. As the human genome project pro gresses and the gene map becomes as dense as the microsatellite polymorphism map, scientists will identify more disease genes through a combination...
متن کاملProgressive fine mapping in experimental populations: an improved strategy toward positional cloning.
Genetic mapping is one of the key steps in positional cloning. The traditional mapping strategies typically require to genotype a set of markers that are nearly evenly or randomly distributed across the genome or a region of interest. Such "grid" strategies work with low efficiency. We propose an improved mapping strategy by integrating the principle of one-dimensional optimization and informat...
متن کاملLocalization of causal locus in the genome of the brown macroalga Ectocarpus: NGS-based mapping and positional cloning approaches
Mutagenesis is the only process by which unpredicted biological gene function can be identified. Despite that several macroalgal developmental mutants have been generated, their causal mutation was never identified, because experimental conditions were not gathered at that time. Today, progresses in macroalgal genomics and judicious choices of suitable genetic models make mutated gene identific...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Methods in molecular biology
دوره 597 شماره
صفحات -
تاریخ انتشار 2010