Category: Uncategorized

NORMAL DISTRIBUTION CURVE. "As predicted by theory, the advantage to sex arises because sexually derived progeny are more variable in fitness, allowing for faster adaptation. This “long-term advantage” builds over multiple generations, eventually resulting in higher fitness of sexual types." https://lnkd.in/ePUmiA8 View in LinkedIn

CORRELATED TO ADAPTION. "Using experimental populations of the facultatively sexual rotifer Brachionus calyciflorus, we show that rates of sex evolve to higher levels during adaptation but then decline as fitness plateaus." https://lnkd.in/ePUmiA8 View in LinkedIn

SEX ENHANCES ADAPTATION. "Both theory and experiments have demonstrated that sex can facilitate adaptation, potentially yielding a group-level advantage to sex." https://lnkd.in/ePUmiA8 View in LinkedIn

SEX BEGETS VARIATION. "Numerous studies across a range of organisms have convergently shown that the majority of variation in overall gene expression is explained by sex. These sex-biased genes have distinct evolutionary properties, namely they show faster rates of sequence and expression divergence, as well as rapid rates of turnover, broadly consistent with sexual selection." https://lnkd.in/dpjGKhi View in LinkedIn

FACTOID. "The effect of sexually antagonistic alleles is greater in long-adapted populations." https://lnkd.in/d4usB5Q View in LinkedIn

PAST HISTORY. "A population's evolutionary history may influence the effect of sexual selection." http://www.sciencedirect.com/science/article/pii/S0960982211013972 View in LinkedIn

FRAGMENT FROM NATURE focuses for the next two weekends in gene life cycles. Like water fleas and planets, genes also have life cycles of birth, middle age and death. Unlike the former two cases, genes may be resurrected into new functions and return to Go in the great game of Monopoly, all over again. We have tended to adopt our human time myopia, and imagine that our genomes are relatively fixed, except for mutations, but in the timeframes of genes, they are dynamic and constantly changing. Enjoy the new perspective, implicitly asking “quo vadis?” View in LinkedIn

WHERE QUESTIONS ALWAYS LEAD. "This uncertainty hinges on whether or not sexual and natural selection act in the same direction, and arises from another central problem in evolutionary biology; what maintains genetic variation in fitness?" https://lnkd.in/d4usB5Q View in LinkedIn

APOLOGIES to those wishing to connect with me, but I have reached my limit and cannot accept your invitations. Please follow me instead. View in LinkedIn

SEXUAL SELECTION THEORY "developed from Darwin’s original intuition, is a cornerstone of evolutionary theory and represents the most parsimonious and robust explanation for a bewildering array of evolutionary patterns and diversity." https://lnkd.in/dbDjBx2 View in LinkedIn