Indian Society of Genetics & Plant Breeding

Inheritance of MYMIV tolerance in two RIL populations of greengram on lower Gangetic alluvial zone during summer and their parental molecular diversity

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Inheritance of MYMIV tolerance was determined in two
sets of recombinant inbred lines (RILs) of mungbean.The
two sets comprising 143 and 79 RILs each derived from
the cross between PM5 x Sub2 and B1 X Sub2, respectively
were considered for the study. Sub2 was a Sublobata
derived lines whereas, B1 was a popular small seeded
cultivar of west Bengal, susceptible against MYMIV. It was
observed that one or two major genes with a few modifiers
played a significant role in resistance mechanism against
MYMIV in the lower Gangetic alluvial zone. Resistance
alleles for Sub2 and PM5 are probably allelic as observed
from frequency distribution pattern. A set of 177 SSRs
were employed for identification of polymorphism between
parents. Only 37 SSRs showed polymorphism between
Sublobata and B1 or PM5. But only eight SSRs were
polymorphic between two high yielding cultivars. Markers
linked with MYMIV tolerance like RGA, SCAR and others
from earlier studies were also considered and found that
only one RGA derived marker showed polymorphism
between resistance and susceptible parents.

Keywords: Greengram, MYMIV, polymorphism, tolerance


Year: 2014
Volume: 74
Issue: Supplementry Issue
Article DOI: 10.5958/0975-6906.2014.00894.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906


Joyashree Mallick, Sumit Murmu, Diana Sagolsem, Sutanu Sarkar info_circle
Nirmal Mandal info_circle
Somnath Bhattacharyya info_circle

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