Author:
Lambrides C. J.,Lawn R. J.,Godwin I. D.,Manners J.,Imrie B. C.
Abstract
Two genetic linkage maps of mungbean derived from the cross Berken ACC 41 are
reported. The F2 map constructed from 67 individuals
consisted of 110 markers (52 RFLP and 56 RAPD) that grouped into 12 linkage
groups. The linked markers spanned a total map distance of 758.3 cM. A
recombinant inbred (RI) population derived from the 67
F2 individuals was used for the generation of an
additional linkage map. The RI map, composed entirely of RAPD markers,
consisted of 115 markers in 12 linkage groups. The linked markers spanned a
total map distance of 691.7 cM. Using a framework set of RFLP markers, the
F2 map was compared with another
F2 mungbean map constructed in Minnesota. In general,
the order of these markers was consistent between maps. Segregation distortion
was observed for some markers. 14.5% (16/110) of mapped
F2 markers and 24% (28/115) of mapped RI
markers segregated with distorted ratios. Segregation distortion occurred in
each successive generation after the F2 . The regions of
distortion identified in the Australian maps did not coincide with regions of
the Minnesota map.
Subject
General Agricultural and Biological Sciences
Cited by
58 articles.
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