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. 1996 May 31;272(5266):1334-6.
doi: 10.1126/science.272.5266.1334.

The rf2 nuclear restorer gene of male-sterile T-cytoplasm maize

X Cui  1 , R P Wise, P S Schnable
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The rf2 nuclear restorer gene of male-sterile T-cytoplasm maize

X Cui et al. Science. .

Abstract

The T cytoplasm of maize serves as a model for the nuclear restoration of cytoplasmic male sterility. The rf2 gene, one of two nuclear genes required for fertility restoration in male-sterile T-cytoplasm (cmsT) maize, was cloned. The protein predicted by the rf2 sequence is a putative aldehyde dehydrogenase, which suggests several mechanisms that might explain Rf2-mediated fertility restoration in cmsT maize. Aldehyde dehydrogenase may be involved in the detoxification of acetaldehyde produced by ethanolic fermentation during pollen development, may play a role in energy metabolism, or may interact with URF13, the mitochondrial protein associated with male sterility in cmsT maize.

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