TY  - JOUR
AV  - restricted
A1  - Latha, J
A1  - Mathur, K
A1  - Mukherjee, P K
A1  - Chakrabarti, A
A1  - Rao, V P
A1  - Thakur, R P
TI  - Morphological, pathogenic and genetic variability amongst  sorghum isolates of Colletotrichum graminicola from India
UR  - http://oar.icrisat.org/4936/
JF  - Indian Phytopathology
SN  - 0367-973X
PB  - Indian Phytopathological Society
N2  - A total of 18 isolates of Collectotrichum graminicola infecting sorghum in Andhra Pradesh and Maharashtra, India, were characterised and compared for morphological, pathogenic and genetic diversity. The representative single-lesion isolates and their derivatives varied significantly for morphological traits -colony colour, growth pattern and sporulation on oat meal agar medium. These isolates also exhibited significant variation for disease reaction on a set of sorghum differential lines in greenhouse tests. The isolates from the local sorghum cultivars were although different from those of CSH 9, they did infect CSH 9 indicating a virulence shift in the C. graminicola population from the local sorghum to hybrid CSH 9. Genotypic variation was studied using the random amplified polymorphic DNA (RAPD) technique. A set of six random primers could differentiate the isolates. The cluster analysis indicated a very high genetic variability among isolates of C. graminicola and amogg variants from a single lesion isolates in RAPD profile.
KW  - Colletotrichum graminicola
KW  -  sorghum
KW  -  pathogenic variability
KW  -  virulence
KW  -  RAPD
Y1  - 2002///
SP  - 19
ID  - icrisat4936
EP  - 25
VL  - 55
IS  - 1
ER  -