Functional trait divergence and trait plasticity confer polyploid advantage in heterogeneous environments

Insulin Signaling Underlies Both Plasticity and Divergence of a Reproductive Trait in Drosophila

Selective advantage of the sickle-cell trait.

tories; (ii) fights limited to two males; (iii) incessant barking by established territorial males; (iv) the use of physical force for displacement of an opponent; (v) the stereotyped boundary ceremony; (vi) the intrusion of smaller males into the resident male's territory so long as they maintain silence and remain visually inconspicuous; and (vii) interference by a dominant bull in "noisy squ...

Insulin signalling underlies both plasticity and divergence of a reproductive trait in Drosophila.

Phenotypic plasticity is the ability of a single genotype to yield distinct phenotypes in different environments. The molecular mechanisms linking phenotypic plasticity to the evolution of heritable diversification, however, are largely unknown. Here, we show that insulin/insulin-like growth factor signalling (IIS) underlies both phenotypic plasticity and evolutionary diversification of ovariol...

Any trait or trait-related allele can confer drought tolerance: just design the right drought scenario.

Most traits associated with drought tolerance have a dual effect, positive in very severe scenarios and negative in milder scenarios, or the opposite trend. Their effects also depend on other climatic conditions such as evaporative demand or light, and on management practices. This is the case for processes associated with cell protection and with avoidance, but also for the maintenance of grow...

Trait convergence and plasticity among native and invasive species in resource-poor environments.

PREMISE OF STUDY Functional trait comparisons provide a framework with which to assess invasion and invasion resistance. However, recent studies have found evidence for both trait convergence and divergence among coexisting dominant native and invasive species. Few studies have assessed how multiple stresses constrain trait values and plasticity, and no study has included direct measurements of...