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Paper Details

Molecular basis of self-incompatibility and its utilization in crop improvement

GULZAR S. SANGHERA1, V. K. SHARMA2 AND SHABIR H. WANI*

Journal Title:International Journal of Agricultural Sciences
Abstract


Self-incompatibility, is a genetically controlled mechanism for rejection of own pollen. It has been a favourite topic for botanists and geneticists since Darwin who first discussed this phenomenon and suggested its central significance during the evolution of flowering plants. Different genetic and mechanistic systems of SI among different plant families suggest either multiple origins of SI or considerable evolutionary diversification. Within the last two decades, molecular and biochemical analyses which have significantly contributed to the elucidation of the complex series of interactions occurring at the pollen-stigma interface. Molecular analyses of self incompatibility systems have focused on identifying and characterizing the pollen and pistil components of the self-incompatible response as well as other proteins and events that lead to pollen rejection. In this review, an attempt has been made to provide a comprehensive insight for the molecular dissection of this important mechanism for its utilization in crop improvement.

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