Competitive and Facilitative Evolutionary Diversification

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Competitive and Facilitative Evolutionary Diversification

C estimates place the number of named species at about 1.4 million (WRI 2001). Scientists continue to discover new species daily, and estimates suggest the total number of species on Earth is somewhere between 2 million and 100 million. More remarkable is that over the past 3 billion to 4 billion years, this enormous diversity of living creatures appears to have evolved from very few ancestral ...

متن کامل

Evolutionary diversification in polyamine biosynthesis.

Polyamine biosynthesis is an ancient metabolic pathway present in all organisms. Aminopropyltransferases are key enzymes that mediate the synthesis of spermidine, spermine, and thermospermine. The relatively high sequence similarity between aminopropyltransferases and their similarity with putrescine N-methyltransferases (PMT) raises the question of whether they share a common ancestor or have ...

متن کامل

Evolutionary Diversification of Insect Innexins

Phylogenetic analysis of insect innexins supported the hypothesis that six major clades of insect innexins arose by gene duplication prior to the origin of the endopterygote insects. Within one of the six clades (the Zpg Clade), two independent gene duplication events were inferred to have occurred in the lineage of Drosophila, after the most recent common ancestor of the dipteran families Culi...

متن کامل

Shared and unique features of evolutionary diversification.

A fundamental question in evolutionary biology asks whether organisms experiencing similar selective pressures will evolve similar solutions or whether historical contingencies dominate the evolutionary process and yield disparate evolutionary outcomes. It is perhaps most likely that both shared selective forces as well as unique histories play key roles in the course of evolution. Consequently...

متن کامل

Evolutionary origins and diversification of mutualism

© Oxford University Press 2015. Published 2015 by Oxford University Press. Molecular phylogenies and ecological associations for approximately two hundred closely related plant species and their specialized, obligate pollinators are depicted without taxonomic names so that we might focus our attention instead on general problems of interpretation. A glance at this web in the tree of life sugges...

متن کامل

ذخیره 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: BioScience

سال: 2004

ISSN: 0006-3568

DOI: 10.1641/0006-3568(2004)054[0101:cafed]2.0.co;2