Working Document Series Open Access 2012 RUF-32971

Phakopsora Pachyrhizi Diversity and Rust Resistance in Soybean Genotypes in Uganda

T. ObuaP. TukamuhabwaG. Tusiime

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Abstract

98 words

The objectives of this study were twofold: (i) to validate use of SSR markers in assessing Phakopsora pachyrhizi diversity in Uganda and (ii) to assess elite soybean lines for resistance to rust in diverse locations in Uganda. A dendogram constructed from the similarity data of the isolates from the five locations grouped the isolates into two clusters. The first cluster consisted of isolates from MUARIK, Iki Iki and Mubuku and the other cluster consisted of isolates from NaCRRI and Nakabango. Maksoy 3N had the lowest rust score of 2.9 while Duiker had the highest mean score of 4.0.

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