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Plant Mol Biol. 1993 Jan;21(1):39-45.

Molecular cloning and characterization of anther-preferential cDNA encoding a putative actin-depolymerizing factor.

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  • 1Institute of Biological Chemistry, Washington State University, Pullman 99164-6340.


A cDNA clone, LMP131A, which is preferentially expressed in mature anther was isolated from a lily cDNA library. Northern blot analysis and plaque hybridization experiments showed that the LMP131A mRNA is present at ca. 0.3% of the mRNA in mature pollen and is not detectable in carpel, petal, floral bud, leaf, or root. The clone contains an open reading frame of 139 amino acid residues which shows greater than 40% sequence identity in a 91 amino acid overlap to animal actin-depolymerizing factors (ADF), cofilin and destrin. The sequences at and near the actin-binding site are most conserved. Using the lily clone as a probe, a cDNA clone, BMP1, was isolated from a mature anther library of Brassica napus. The expression pattern of the BMP1 clone was the same as that of the lily clone. The Brassica anther-preferential clone contains an open reading frame which is 79% identical to the lily LMP131A protein. Southern blot analysis showed that there are one or a few copies of the putative ADF genes in B. napus and Arabidopsis thaliana.

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