Polyploidy in Angiosperms: Genetic Insight to the Phenomenon
2016
Datta, Animesh Kumar | Mandal, Aninda | Das, Debadrito | Gupta, Sudha | Saha, Aditi | Paul, Rita | Sengupta, Sonali | Halder, Sandip | Biswas, Subikash
Polyploidy in angiosperm is a well discussed phenomenon for last few decades but still the proper mechanism and its consequences remain to be an enigma. The present review revisited the phenomenon of polyploidy in angiosperms considering many aspects like genome merging and duplication, restructuring of genome, gene silencing, genome size dynamics, meiotic pairing behaviour of homologues, adaptive significance, relationship between C-value and DNA content among others and a few key questions are raised. It is rather difficult to understand whether all of these regulatory events under the ecological niche are unilateral forces or act as tools of a unified selection machinery of evolution, speciation and diversification. The present discussion may provide genetic insight on the phenomenon in an explicit dimension for proper understanding of evolutionary biology.
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