Abstract
Abstract Even in the absence of excisional loss of the associated Mu transposons, some Mu-induced mutant alleles of maize can lose their capacity to condition a mutant phenotype. Three of five Mu-derived rf2a alleles are susceptible to such Mu suppression. The suppressible rf2a-m9437 allele has a novel Mu transposon insertion (Mu10) in its 5′ untranslated region (UTR). The suppressible rf2a-m9390 allele has a Mu1 insertion in its 5′ UTR. During suppression, alternative transcription initiation sites flanking the Mu1 transposon yield functional transcripts. The suppressible rf2a-m8110 allele has an rcy/Mu7 insertion in its 3′ UTR. Suppression of this allele occurs via a previously unreported mechanism; sequences in the terminal inverted repeats of rcy/Mu7 function as alternative polyadenylation sites such that the suppressed rf2a-m8110 allele yields functional rf2a transcripts. No significant differences were observed in the nucleotide compositions of these alternative polyadenylation sites as compared with 94 other polyadenylation sites from maize genes.
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Dates
Type | When |
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Created | 4 years, 4 months ago (April 23, 2021, 1:29 a.m.) |
Deposited | 3 years, 7 months ago (Jan. 5, 2022, 2:24 p.m.) |
Indexed | 1 year ago (Aug. 4, 2024, 1:54 p.m.) |
Issued | 22 years, 7 months ago (Feb. 1, 2003) |
Published | 22 years, 7 months ago (Feb. 1, 2003) |
Published Online | 22 years, 7 months ago (Feb. 1, 2003) |
Published Print | 22 years, 7 months ago (Feb. 1, 2003) |
@article{Cui_2003, title={Alternative Transcription Initiation Sites and Polyadenylation Sites Are Recruited During Mu Suppression at the rf2a Locus of Maize}, volume={163}, ISSN={1943-2631}, url={http://dx.doi.org/10.1093/genetics/163.2.685}, DOI={10.1093/genetics/163.2.685}, number={2}, journal={Genetics}, publisher={Oxford University Press (OUP)}, author={Cui, Xiangqin and Hsia, An-Ping and Liu, Feng and Ashlock, Daniel A and Wise, Roger P and Schnable, Patrick S}, year={2003}, month=feb, pages={685–698} }