Month: September 2022

"THE TRANSITION TO DIOECY has been associated with the evolution of sex chromosomes in some dioecious plant species, and theory suggests that they can facilitate the evolution of sexual dimorphism." https://lnkd.in/ge7JD6J View in LinkedIn

ANTAGONISTIC EVOLUTION. "Sex-linked genes with sexually antagonistic effects play an important role in theoretical models of plant sex chromosome evolution by causing selection against recombination between loci on newly evolving sex chromosomes." https://lnkd.in/ge7JD6J View in LinkedIn

SELECTIVE LOCATION. "Rice (1984) used a genetic model to investigate the relationship between sexual dimorphism and sex chromosomes, and predicted that genes with sexually antagonistic effects should be disproportionately located on sex chromosomes." https://lnkd.in/ge7JD6J View in LinkedIn

SPECIAL CASE. "Alleles of sex-linked genes can spread though dioecious populations even when the deleterious effects to one sex outweigh the benefits to the other." https://lnkd.in/ge7JD6J View in LinkedIn

SPECIAL TRANSMISSION CASE. "Sexually dimorphic phenotypes are often associated with genes on the sex chromosomes because such genes have sex-biased transmission and genomic distributions." https://lnkd.in/ge7JD6J View in LinkedIn

GENETIC HOT SPOT. "The X chromosome can accumulate such female-benefit genes at a faster rate, and the ‘feminization’ of this chromosome might make it an evolutionary hot-spot for genes involved in sexual dimorphism." https://lnkd.in/ge7JD6J View in LinkedIn

FEMALE IMPACT. "Flowering synchrony and floral sex ratio have the potential to influence the mating opportunities and reproductive success through female function." https://lnkd.in/encXPYB View in LinkedIn

TESTING THE IMPACT. "We examine the variances in synchronous display of female and male function, ratio of male to female flowers per day and subsequently reproductive output in small populations of two monoecious plants, Sagittaria trifolia and Sagittaria graminea." https://lnkd.in/encXPYB 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

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