منابع مشابه
Evolution of morphological allometry.
Morphological allometry refers to patterns of covariance between body parts resulting from variation in body size. Whether measured during growth (ontogenetic allometry), among individuals at similar developmental stage (static allometry), or among populations or species (evolutionary allometry), allometric relationships are often tight and relatively invariant. Consequently, it has been sugges...
متن کاملEvolution through genetically controlled allometry space.
Understanding evolutionary change requires phenotypic differences between organisms to be placed in a genetic context. However, there are few cases where it has been possible to define an appropriate genotypic space for a range of species. Here we address this problem by defining a genetically controlled space that captures variation in shape and size between closely related species of Antirrhi...
متن کاملThe evolution of static allometry in sexually selected traits.
Although it has been the subject of verbal theory since Darwin, the evolution of morphological trait allometries remains poorly understood, especially in the context of sexual selection. Here we present an allocation trade-off model that predicts the optimal pattern of allometry under different selective regimes. We derive a general solution that has a simple and intuitive interpretation and us...
متن کاملAntirrhinum
What do you think are the big questions to be answered next in your field? Complete sequences for genomes, large and small, are generating boatloads of questions and opportunities, which will keep us all busy for a long time yet. For example, what are all the mystery genes doing — the numerous predicted genes that have no informative sequence similarities, nor any obvious phenotypes in knockout...
متن کاملEvolution of novel morphological and reproductive traits in a clade containing Antirrhinum majus (Scrophulariaceae).
Phylogenetic analysis of DNA sequences of the chloroplast genes rcbL and ndhf revealed a highly supported clade composed of the families Plantaginaceae, Callitrichaceae, and Hippuridaceae in close association with the model organism Antirrhinum majus and other members of family Scrophulariaceae. Plantago has miniature actinomorphic wind-pollinated flowers that have evolved from zygomorphic anim...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2009
ISSN: 1532-298X,1040-4651
DOI: 10.1105/tpc.109.069054