MATERIALS AND METHODS
Fusarium isolates. The Fusarium udum (Fud)
isolates collected from wilt affected fields of
pigeonpea from seven major pulse growing states
of India were used as experimental material in the
present study (Table 1). The isolates were
selected based on the variability in their cultural,
morphological and pathogenic characters. For
facilitating easy identification of the isolates, the
original isolate numbers have been used
throughout the text.
Molecular markers. A total of 40 RAPD primers
and 12 SSR markers were used in this study. The
RAPD primers from Operon series and SSR primers
based on reported primer sequences were got/
synthesized from Operon Technologies, USA.
Tables 2 and 3 show the Tm, source and sequence
details of RAPD and SSR primers. The nuclear
rDNA ITS region, including ITS2 and the 5.8S