Category: Uncategorized

RECENT UNISEXUALITY IN PLANTS. "Much of the genetic variation available for the evolution of sexual dimorphism is likely to have been initially shared by the sexes after the establishment of dioecy, and the recent origins of unisexuality in some lineages may mean that there has not been sufficient time for selection to break down intersexual genetic correlations." https://lnkd.in/ge7JD6J View in LinkedIn

TRAIT DIVERGENCE. "When dioecy evolves from hermaphroditism and the sexes are initially monomorphic with respect to homologous characters, intersexual genetic correlations should be quite strong and could interfere with female and male trait divergence." https://lnkd.in/ge7JD6J View in LinkedIn

RECENT EVENT. "The typically weaker sexual dimorphism in plants than animals may also be explained by the recent evolutionary origins of dioecy in most lineages." https://lnkd.in/ge7JD6J View in LinkedIn

PLANT DIMORPHISM. "The extent to which mate choice operates in plants also warrants special consideration because of the indirect ways in which plants reproduce as a consequence of their immobility. Indeed, the indirect nature of plant sexual interactions may be part of the explanation for why most plants show less extreme sexual dimorphism than animals." https://lnkd.in/ge7JD6J View in LinkedIn

PLANTS VS ANIMALS. "There are important differences in the biology of plants and animals that may provide insights into why and how the evolution of sexual dimorphism differs between these groups." https://lnkd.in/ge7JD6J View in LinkedIn

UNTANGLING ORIGINS. "If plants have evolved through the gynodioecy pathway, gynodioecious and dioecious species should co-occur in the same genera. It was found that, overall, angiosperm genera with both gynodioecious and dioecious species occur more frequently than expected, in agreement with the gynodioecy pathway." https://lnkd.in/guzeMTD View in LinkedIn

WHO WE ARE. “It is really easy to come to the conclusion that we are viruses.” https://lnkd.in/guhpmyR View in LinkedIn

MERGED BEINGS. Viral integration into the germline “when a virus and a host merge: they are not acting like viruses, but they are a part of our own genetic fabric, which could affect the future course of evolution.” Retroviruses can change our genetic code. https://lnkd.in/guhpmyR View in LinkedIn

ORIGINS. “Given the potential role of viruses in evolution, many are starting to question who we really are and where we came from.” (Thank you Paul Gaugin: D'où Venons Nous / Que Sommes Nous / Où Allons Nous). https://lnkd.in/guhpmyR View in LinkedIn

FRAGMENT FROM NATURE continues from last weekend on the role of viruses in evolution. While many dismiss viruses as non-living entities not worthy to be included in the tree of life, others contend, with strong evidence, that these creatures have played a key role in the evolution of life on this planet, including our own. Come and see what these non-living molecules have been up to. Are they the hand behind the wheel? View in LinkedIn