Two genetic linkage maps of mungbean using RFLP and RAPD markers

Lambrides, C.J., Lawn, R.J., Godwin, I.D., Manners, J., and Imrie, B.C. (2000) Two genetic linkage maps of mungbean using RFLP and RAPD markers. Australian Journal of Agricultural Research, 51 (4). pp. 415-425.

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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.

Item ID: 12766
Item Type: Article (Refereed Research - C1)
Keywords: DNA markers; marker-assisted selection; segregation distortion; Vigna
ISSN: 1836-5795
Date Deposited: 14 Dec 2010 01:25
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0703 Crop and Pasture Production > 070305 Crop and Pasture Improvement (Selection and Breeding) @ 100%
SEO Codes: 82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8205 Winter Grains and Oilseeds > 820503 Grain Legumes @ 100%
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