Floral homeotic mutations produced by transposon-mutagenesis in Antirrhinum majus.
نویسندگان
چکیده
منابع مشابه
Genetic Control of Flower Development by Homeotic Genes in Antirrhinum majus.
Homeotic mutants have been useful for the study of animal development. Such mutants are also known in plants. The isolation and molecular analysis of several homeotic genes in Antirrhinum majus provide insights into the underlying molecular regulatory mechanisms of flower development. A model is presented of how the characteristic sequential pattern of developing organs, comprising the flower, ...
متن کاملConservation of floral homeotic gene function between Arabidopsis and antirrhinum.
Several homeotic genes controlling floral development have been isolated in both Antirrhinum and Arabidopsis. Based on the similarities in sequence and in the phenotypes elicited by mutations in some of these genes, it has been proposed that the regulatory hierarchy controlling floral development is comparable in these two species. We have performed a direct experimental test of this hypothesis...
متن کاملMolecular analysis of a transposon-induced deletion of the nivea locus in Antirrhinum majus.
The transposable element Tam3 of Antirrhinum majus is capable of causing large-scale chromosomal restructuring. It induced a large deletion at the nivea locus, to produce the allele niv-:529. The deletion removed the entire nivea coding region while the element remains intact with the potential to induce further rearrangements. Genetic experiments showed that the endpoint of the deletion (calle...
متن کاملTemperature shift coordinately changes the activity and the methylation state of transposon Tam3 in Antirrhinum majus.
The transposition frequency of Tam3 in Antirrhinum majus, unlike that of most other cut-and-paste-type transposons, is tightly controlled by temperature: Tam3 transposes rarely at 25 degrees C, but much more frequently at 15 degrees C. Here, we studied the mechanism of the low-temperature-dependent transposition (LTDT) of Tam3. Our results strongly suggest that LTDT is not likely to be due to e...
متن کاملDual role for fimbriata in regulating floral homeotic genes and cell division in Antirrhinum.
The fimbriata (fim) gene of Antirrhinum affects both the identity and arrangement of organs within the flower, and encodes a protein with an F-box motif. We show that FIM associates with a family of proteins, termed FAPs (FIM-associated proteins), that are closely related to human and yeast Skp1 proteins. These proteins form complexes with F-box-containing partners to promote protein degradatio...
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ژورنال
عنوان ژورنال: Genes & Development
سال: 1990
ISSN: 0890-9369
DOI: 10.1101/gad.4.9.1483