ArticleMolecular & general genetics : MGG1996
Variation in the ratio of physical to genetic distance in intervals adjacent to the Mla locus on barley chromosome 1H.
Article in Molecular & general genetics : MGG, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- The gene conferring susceptibility to spot blotch caused by Cochliobolus sativus is located at the Mla locus in barley cultivar Bowman.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018Article
- Physical Location of New PCR-Based Markers and Powdery Mildew Resistance Gene(s) on Rye (Frontiers in plant science · 2017Article
- Phenotypic and fine genetic characterization of the D locus controlling fruit acidity in peach.BMC plant biology · 2009Article
- Characterization of low-molecular-weight glutenin genes in Aegilops tauschii.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2004Article
- A deep-coverage tomato BAC library and prospects toward development of an STC framework for genome sequencing.Genome research · 2000Article
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Abstract
Variants of the pulsed-field gel electrophoresis technique were used in conjunction with two-dimensional DNA gel electrophoresis (2-DDGE) to determine the ratio of physical to genetic distance in two genetically defined intervals on barley chromosome 1H.2-DDGE analysis demonstrated that two loci that define a 0.3 cM interval, as determined by hybridization with BCD249, reside on a single 450-kb MluI fragment. This result indicates a maximum ratio of physical to genetic distance in this interval of 1500 kb/cM as compared to 3.7-4.2 Mb/cM for the barley genome as a whole. High molecular weight (HMW) DNA restricted with NotI and probed sequentially with MWG068 and BCD249 yield diffuse bands at approximately 2.8 Mb and 3.0 Mb in the C.I. 16151 and C.I. 16155 parental lines, respectively. These results suggest the maximum ratio of physical to genetic distance in the interval defined by these probes is 7.8 Mb/cM. Unique HMW DNA restriction fragment length polymorphisms (RFLP) were attributed to the presence of recombination breakpoints. Data from the recombination breakpoint analysis were used to estimate a ratio of physical to genetic distance of 2.5 Mb/cM in the Xbcd249.2-Xmwg068 interval and 0.465 Mb/cM in the Xbcd249.1-Xbcd249.2 interval. Both physical linkage and recombination breakpoint analysis indicate the Xbcd249.1-Xbcd249.2 interval is approximately five-fold smaller, physically, than the Xbcd249.2-Xmwg068 interval.
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