Environmental influences on the frequency and viability of meiotic and apomeiotic cells of a diploid mutant of alfalfa.

From: Crop Science | Date: January 1, 1997| Author: | Copyright information

Apomixis involves the parthenogenetic development of apomeiotic eggs. It has the potential of cloning plants through seed, and thus furnishes a unique opportunity in alfalfa breeding for developing superior cultivars with permanently fixed heterosis. Megasporogenesis of a meiotic mutant of alfalfa Medicago sativa subsp. falcata (L.) Arcang. (2N=2x=16), named PG-F9, that produced 2n second division restitution (SDR) and apomeiotic eggs at high frequencies, was cytologically analyzed by both stain-clearing and sectioning techniques. The restitutional 2n egg formation was mainly due to the ...

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