Increased Flower Longevity in Petunia with Male Sterility

Identification of a mitochondrial protein associated with cytoplasmic male sterility in petunia.

The petunia fused gene (pcf), which is associated with cytoplasmic male sterility (CMS), is composed of sequences derived from atp9, coxII, and an unidentified reading frame termed urfS. To determine whether the pcf gene is expressed at the protein level, we produced antibodies to synthetic peptides specified by the coxII and urfS portions of the pcf gene. Anti-COXII peptide antibodies recogniz...

ldentification of a Mitochondrial Protein Associated with Cytoplasmic Male Sterility in Petunia

The petunia fused gene ( pcf ), which is associated with cytoplasmic male sterility (CMS), is composed of sequences derived from atp9, coxll, and an unidentified reading frame termed urfS. To determine whether the pcf gene is expressed at the protein level, we produced antibodies to synthetic peptides specified by the coxll and urfs portions of the pcf gene. Anti-COXII peptide antibodies recogn...

Cytogenetic Investigations in Couples with Male Sterility

MAEWEST Expression in Flower Development of Two Petunia Species

Changes in flower morphology may influence the frequency and specificity of animal visitors. In Petunia (Solanaceae), adaptation to different pollinators is one of the factors leading to species diversification within the genus. This study provides evidence that differential expression patterns of MAWEWEST (MAW) homologs in different Petunia species may be associated with adaptive changes in fl...

Mechanisms of Genic Male Sterility

For normal sexual reproductive development, coordination must occur between both male and female organ ontogeny. An abnormality at any point in this process may lead to sterility. Classification of sterility can be divided into heritable and nonheritable sterility. Numerous schemes for mechanisms controlled by nuclear genes (genic male sterility) have been devised to identify the timing and loc...