National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Intermittent drought stress in rainfed ecosystem significantly limits the production of Ranjit, the most predominant high yielding rice variety of North East India. In order to understand the genetic basis of drought tolerance a mapping population comprising 85 F4 individuals between ‘Ranjit’ and a drought tolerant cultivar, ARC10372 was developed and genotyped with 80 microsatellite markers. 7 possible linkage groups were analysed by changing the LOD values and the recombination frequencies in the Join map 4.0 software package. Only 3 linkage groups were considered out of the 7 linkage groups as the map was calculated at LOD threshold 3.0 and above. It could be concluded that, higher critical LOD values will result in more number of fragmented linkage groups, each with smaller number of markers while small LOD values will tend to create few linkage groups with large number of markers per group.
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