Abstract:
:An unstable allele of the bronze 2 (bz2) locus was isolated from a Robertson's Mutator Zea mays line containing a family of active transposable Mu elements. This mutation is somatically unstable, resulting in numerous revertant purple sectors on a bronze kernel. By following the variegated kernel phenotype through two generations, several lineages have been identified that have a distorted transmission of the mutant phenotype (fewer variegated kernels are produced than expected). Southern blot analysis of Mu elements in these plants demonstrates a correlation between an inhibition of digestion of Mu elements by certain restriction enzymes and the loss of somatic reversion at the mutant allele. The DNA modification can occur in all the Mu elements in a plant within one generation; however, plants have been identified that contain both modified and unmodified elements, suggesting that the modification can occur in a progressive manner. We hypothesize that the DNA modification results in nonfunctional elements.
journal_name
Proc Natl Acad Sci U S Aauthors
Chandler VL,Walbot Vdoi
10.1073/pnas.83.6.1767subject
Has Abstractpub_date
1986-03-01 00:00:00pages
1767-71issue
6eissn
0027-8424issn
1091-6490journal_volume
83pub_type
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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abstract::Plasmons, the collective oscillations of interacting electrons, possess emergent properties that dramatically alter the optical response of metals. We predict the existence of a new class of plasmons-chiral Berry plasmons (CBPs)-for a wide range of 2D metallic systems including gapped Dirac materials. As we show, in t...
journal_title:Proceedings of the National Academy of Sciences of the United States of America
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