کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2205068 1100858 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A role for convergent evolution in the secretory life of cells
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
A role for convergent evolution in the secretory life of cells
چکیده انگلیسی

The role of convergent evolution in biological adaptation is increasingly appreciated. Many clear examples have been described at the level of individual proteins and for organismal morphology, and convergent mechanisms have even been invoked to account for similar community structures that are shared between ecosystems. At the cellular level, an important area that has received scant attention is the potential influence of convergent evolution on complex subcellular features, such as organelles. Here, we show that existing data strongly argue that convergent evolution underlies the similar properties of specialized secretory vesicles, called dense core granules, in the animal and ciliate lineages. We discuss both the criteria for judging convergent evolution and the contribution that such evolutionary analysis can make to improve our understanding of processes in cell biology. The elucidation of these underlying evolutionary relationships is vital because cellular structures that are assumed to be analogous, owing to shared features, might in fact be governed by different molecular mechanisms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 17, Issue 4, April 2007, Pages 157–164
نویسندگان
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