作者: Janet Seager Danciger , Michael Danciger *, , Steven Nusinow , Tammy Rickabaugh
关键词: Human genetics 、 Retinal degeneration 、 Genetic marker 、 Genetics 、 Locus (genetics) 、 Gene 、 Biology 、 Homologous chromosome 、 Physical Maps 、 Contig
摘要: The rd3 retinal degeneration gene was previously mapped 10 ± 2.5 cM distal to Akp1 on mouse Chromosome (Chr) 1 (Chang et al., 1993), a region that may be homologous the locus of human USH2A gene, which carries mutations responsible for Usher IIa degeneration/hearing loss syndrome. An intercross from an Rb(11,13)4Bnr(rd3/rd3) × C57BL/6J mating set up, 428 F2 meioses were analyzed, and placed between markers D1MIT292/D1MIT209 D1MIT510, distance 1.40 0.57 cM. These flanking ortholog (Mush2a) in T31 radiation hybrid (RH) panel, with result D1MIT510 7.9 cR3000 apart (∼800 kb), Mush2a > 30 proximal pair, excluding it locus. A contig spanning consisting 2 YACs one BAC generated, absent it, confirming its exclusion Comparison adjacent marker pairs Whitehead genetic map our showed some discrepancies order distances. RH highly skewed relationships physical