Genetic regulation of life cycle transitions in the brown alga Ectocarpus
نویسندگان
چکیده
منابع مشابه
Life-cycle-generation-specific developmental processes are modified in the immediate upright mutant of the brown alga Ectocarpus siliculosus.
Development of the sporophyte and gametophyte generations of the brown alga E. siliculosus involves two different patterns of early development, which begin with either a symmetric or an asymmetric division of the initial cell, respectively. A mutant, immediate upright (imm), was isolated that exhibited several characteristics typical of the gametophyte during the early development of the sporo...
متن کامل13-P010 Auxin in the control of the development of the brown alga Ectocarpus siliculosus
cate that Shh signalling controls Laminin gene expression, a critical step in the formation of the myotomal basement membrane, and that Laminin-111 has specific and essential role in myotomal basement membrane assembly. Together, our data reveal a novel role for Shh signalling in the control of basement membrane assembly and provide a framework for understanding the complex interactions between...
متن کاملSexual dimorphism and the evolution of sex-biased gene expression in the brown alga ectocarpus.
Males and females often have marked phenotypic differences, and the expression of these dissimilarities invariably involves sex differences in gene expression. Sex-biased gene expression has been well characterized in animal species, where a high proportion of the genome may be differentially regulated in males and females during development. Male-biased genes tend to evolve more rapidly than f...
متن کامل03-P007 Characterisation of the hyperbranching mutant “étoile” in the filamentous brown alga Ectocarpus
by ecdysteroids and prevented by the morphostatic juvenile hormone (JH). The fruitfly Drosophila enabled discovery of the genetics of steroid regulation, but due to the evolutionary reduction of dependence on JH in the fly, the molecular mode of JH action remains unclear. We used RNAi in insects with a strict ancestral JH control of metamorphosis to define elements of the JH signaling pathway. ...
متن کاملAuxin metabolism and function in the multicellular brown alga Ectocarpus siliculosus.
Ectocarpus siliculosus is a small brown alga that has recently been developed as a genetic model. Its thallus is filamentous, initially organized as a main primary filament composed of elongated cells and round cells, from which branches differentiate. Modeling of its early development suggests the involvement of very local positional information mediated by cell-cell recognition. However, this...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Plant Signaling & Behavior
سال: 2011
ISSN: 1559-2324
DOI: 10.4161/psb.6.11.17737