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The Journal of Heredity 1994:85(3):231-233
© 1994 The American Genetic Association 85:231-233

other

A Recessive Gene Determining Male Sterility in Quinoa

S. M. Ward, and D. L. Johnson

Department of Agronomy, Colorado State University Fort Collins, CO 80523

Abstract

Plants of the Bolivian quinoa (Chenopodium quinoa Willd.) cultivar Amachuma carry a single nuclear recessive gene which in the homozygous state produces fully formed anthers completely devoid of pollen. Plants heterozygous at this locus are indistinguishable from homozygous male fertiles, and segregation for male sterility follows a normal Mendelian single-gene pattern. This form of male sterility is likely to be of limited use in hybrid quinoa production due to poor stigma exsertion, which results in inefficient pollination.


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