Month: September 2022

CHROMOSOME REARRANGEMENTS. "TE insertions probably contribute to the greater degree of rearrangement of Y than X chromosomes observed in mammals and in the plants papaya and S. latifolia." (TE = transposable elements). https://lnkd.in/exrSaeb View in LinkedIn

CLUES IN NATURE. "The sexuality of flowers is an important reproductive character in angiosperms. An insight into the evolutionary events that led to the appearance of monoecious and dioecious species can be gained by comparing closely related groups with contrasting characters." https://lnkd.in/e5Q-RPV View in LinkedIn

IMPORTANT QUESTION. "Understanding the driving forces and molecular processes underlying dioecy and sex chromosome evolution, leading from hermaphroditism to the occurrence of male and female individuals, is of considerable interest in fundamental and applied research." https://lnkd.in/ey4vMRy View in LinkedIn

ORIGIN. "Our data show that sex chromosomes evolved from a common autosomal origin before the diversification of the extant dioecious species." https://lnkd.in/ey4vMRy 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

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

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

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

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 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