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The Journal of Heredity 1988:79(1):40-44
© 1988 The American Genetic Association 79:40-44

research-article

Pollen Transmission of Plastid–DNA Under Genotypic Control in Petunia hybrida Hort

A. Cornu, and H. Dulieu

Department of Genetics and Plant Breeding, Institut National de la Recherche Agronomique (INRA), Laboratoire de Génétique et de Mutagenèse Dijon Cédex, France

Address reprint requests to A. Cornu, Laboratoire de Génétique et de Mutagenèse, INRA, BV 1540, 21034 Dijon Cédex, France.

Abstract

Among 19 inbred lines of Petunia hybrida Hort crossed as male parents with a homogeneous Yellow-virescent mutant (Yv) showing strict maternal inheritance, one consistently produced F1 progenies containing up to 2% of individuals with green sectors. This line was used to contrive a tester possessing this genotype, on one hand, and the Petunia parodii plastome, on the other. With this tester, it was possible to demonstrate, through the presence of a 7.4-kbp restriction fragment, that the cp-DNA from the green sectors is of pollinic origin. It is, therefore, concluded that genotypes do exist that control pollen transmission of intact plastids, even in a species having consistently exhibited strict maternal inheritance.


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