evolution

Mammals with small populations do not exhibit larger genomes

Genome size in cellular organisms varies by six orders of magnitude, yet the cause of this large variation remains unexplained. The influential Drift-Barrier Hypothesis proposes that large genomes tend to evolve in small populations due to …

New paper showing genome downsizing critical to enabling higher mesophyll conductance

Genome size coordinates cell sizes and packing densities throughout the leaf

Towards the flower economics spectrum

Understanding how floral traits affect reproduction is key for understanding genetic diversity, speciation, and trait evolution in the face of global changes and pollinator decline. However, there has not yet been a unified framework to characterize …

Diversification, disparification, and hybridization in the desert shrubs Encelia

There are multiple hypotheses for the spectacular plant diversity found in deserts. We explore how different factors, including the roles of ecological opportunity and selection, pro- mote diversification and disparification in Encelia, a lineage of …

Natural selection maintains species despite frequent hybridization in the desert shrub Encelia

Natural selection is an important driver of genetic and phenotypic differentiation between species. For species in which potential gene flow is high but realized gene flow is low, adaptation via natural selection may be a particularly important force …

Recent paper showing how strong natural selection can maintain species boundaries despite hybridization

New paper shows how multiple ecological axes contribute to gradients of selection

Recent paper proposing a Flower Economics Spectrum (FES)

New paper proposes the primary dimensons of flower construction

TRY plant trait database - enhanced coverage and open access

Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their …

The scaling of genome size and cell size limits maximum rates of photosynthesis with implications for ecological strategies

A central challenge in plant ecology is to define the major axes of plant functional variation with direct con- sequences for fitness. Central to the three main components of plant fitness (growth, survival, and reproduction) is the rate of metabolic …

Flower Physiology

Defining the physiological dimensions of floral form and evolution