NDLI: Regulatory potential of nonautonomous mariner elements and subfamily crosstalk

Content Provider	Springer Nature Link
Author	Anguiar, Daniel De Hartl, Daniel L.
Copyright Year	1999
Abstract	Two naturally occurring nonautonomous mariner elements were tested in vivo for their ability to down-regulate excision of a target element in the presence of functional mariner transposase. The tested elements were the peach element isolated from Drosophila mauritiana which encodes a transposase that differs from the autonomous element Mos1 in four amino acid replacements, and the DTBZ1 element isolated from D. teissieri which encodes a truncated protein consisting of the first 132 residues at the amino end of the normally 345-residue transposase. We provide evidence that the protein from the peach element does interact to down-regulate wildtype transposase, indicating that at least some nonautonomous elements in natural populations that retain their open reading frame may play a regulatory role. In contrast, our tests reveal at most a weak interaction between transposase from the autonomous Mos1 element and the truncated protein from DTBZ1 and none between Mos1 transposase and that from the distantly related mariner-like element Himar1 identified in the horn fly Haematobia irritans. Hence, the extent of regulatory crosstalk between mariner-like elements may be limited to closely related ones. The evolutionary implications of these results are discussed.
Starting Page	79
Ending Page	85
Page Count	7
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	107
Issue Number	1-3
e-ISSN	15736857
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1999-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Human Genetics Plant Genetics & Genomics Animal Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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