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Boyartchuk VL Broman KW Mosher RE D'Orazio SE Starnbach MN Dietrich WF 《Nature genetics》2001,27(3):259-260
We have used a novel quantitative trait locus model to study the genetics of survival of F2 progeny of susceptible BALB/cByJ and resistant C57BL/6ByJ mice that have been infected with Listeria monocytogenes. This allowed us to map modifiers of L. monocytogenes susceptibility to chromosomes 5 and 13. 相似文献
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Comparison of human genetic and sequence-based physical maps 总被引:40,自引:0,他引:40
Yu A Zhao C Fan Y Jang W Mungall AJ Deloukas P Olsen A Doggett NA Ghebranious N Broman KW Weber JL 《Nature》2001,409(6822):951-953
Recombination is the exchange of information between two homologous chromosomes during meiosis. The rate of recombination per nucleotide, which profoundly affects the evolution of chromosomal segments, is calculated by comparing genetic and physical maps. Human physical maps have been constructed using cytogenetics, overlapping DNA clones and radiation hybrids; but the ultimate and by far the most accurate physical map is the actual nucleotide sequence. The completion of the draft human genomic sequence provides us with the best opportunity yet to compare the genetic and physical maps. Here we describe our estimates of female, male and sex-average recombination rates for about 60% of the genome. Recombination rates varied greatly along each chromosome, from 0 to at least 9 centiMorgans per megabase (cM Mb(-1)). Among several sequence and marker parameters tested, only relative marker position along the metacentric chromosomes in males correlated strongly with recombination rate. We identified several chromosomal regions up to 6 Mb in length with particularly low (deserts) or high (jungles) recombination rates. Linkage disequilibrium was much more common and extended for greater distances in the deserts than in the jungles. 相似文献
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Summary The presence of a glycolytic complex or particle has been demonstrated in the insect midgut form ofTrypanosoma brucei brucei. It differs from the ‘glycosome’ of the bloodstream form of the parasite in that 3-phosphoglycerate kinase is absent. The
latter enzyme appears to be cytosolic.
Acknowledgment. We are grateful to Dr R. Brun for the kind supply of the strain. The work was funded by the Swiss National
Science Foundation No. 3.331.0.78. 相似文献
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Churchill GA Airey DC Allayee H Angel JM Attie AD Beatty J Beavis WD Belknap JK Bennett B Berrettini W Bleich A Bogue M Broman KW Buck KJ Buckler E Burmeister M Chesler EJ Cheverud JM Clapcote S Cook MN Cox RD Crabbe JC Crusio WE Darvasi A Deschepper CF Doerge RW Farber CR Forejt J Gaile D Garlow SJ Geiger H Gershenfeld H Gordon T Gu J Gu W de Haan G Hayes NL Heller C Himmelbauer H Hitzemann R Hunter K Hsu HC Iraqi FA Ivandic B Jacob HJ Jansen RC Jepsen KJ Johnson DK Johnson TE Kempermann G 《Nature genetics》2004,36(11):1133-1137
The goal of the Complex Trait Consortium is to promote the development of resources that can be used to understand, treat and ultimately prevent pervasive human diseases. Existing and proposed mouse resources that are optimized to study the actions of isolated genetic loci on a fixed background are less effective for studying intact polygenic networks and interactions among genes, environments, pathogens and other factors. The Collaborative Cross will provide a common reference panel specifically designed for the integrative analysis of complex systems and will change the way we approach human health and disease. 相似文献
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