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This article in CS

  1. Vol. 20 No. 2, p. 159-162
     
    Received: June 18, 1979


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doi:10.2135/cropsci1980.0011183X002000020002x

DNA Heterogeneity Within the C Group of Maize Male-Sterile Cytoplasms1

  1. D. R. Pring,
  2. M. F. Conde and
  3. C. S. Levings2

Abstract

Abstract

Restriction endonuclease fragment analyses of organelle DNAs from five members of the C group of male-sterile maize (Zea mays L.) cytoplasms revealed three mitochondrial DNA types, while no chloroplast DNA variation was observed. It is proposed that three subgroups of the C group be designated: CI (C cytoplasm); CII (RB, BB, and E cytoplasms); CIII (ES cytoplasm). Heterogeneity within the C group indicates the possibility of broadening the cytoplasmic base of hybrid maize production.

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