Indian Society of Genetics & Plant Breeding

Population structure, molecular and physiological characterisation of elite wheat varieties used as parents in drought and heat stress breeding in India

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In the present study 24 modern cultivars of wheat were
subjected to genetic and physiological characterisation in
order to ascertain their use as parents in drought and heat
tolerance breeding. The physiological traits, canopy
temperature and chlorophyll content of flag leaves were
found to be widely distributed. Population structure
analysis grouped them into seven clusters with optimum k
value=7. AMOVA and PCoA (Principal Coordinate Analysis)
revealed higher level of polymorphism among the resistant
and susceptible groups. The study revealed that the
varieties used in breeding program are highly divergent
pure breeding lines with unique pattern of alleles.

Keywords: Drought, genetic diversity, heat, physiological traits, wheat


Year: 2015
Volume: 75
Issue: 2
Article DOI: 10.5958/0975-6906.2015.00038.3
Print ISSN: 0019-5200
Online ISSN: 0975-6906



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