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TRANSPOSON CONTROL. "There is a fitness tradeoff between keeping transposons controlled and the mRNA level of adjacent genes; small genomes like A. thaliana, those more efficient at transposon silencing, maintain relatively low levels of mRNA in comparison to the larger, more highly expressed A. lyrata." https://lnkd.in/bCmw3Fr View in LinkedIn

GENOME CONTRACTION. "Twenty-four ancient plant polyploidies have been documented within plant genomes as of January 2014. In maize, some crucifers, and perhaps all new plant polyploids, fractionation (loss of duplicated genes) and diploidization (return to diploid meiotic behavior) happen within a few million years of the WGD. In the grasses, both fractionation and diploidization are relatively rapid." (WGD = whole genome duplication). https://lnkd.in/bCmw3Fr View in LinkedIn

TRANSPOSON EFFECTS. "We hypothesize that following a chaotic wide-cross/new tetraploid period, genes acquire their new expression balances based on differences in transposon coverage in the parents. We envision patches of silenceable transposon as quantitative cis-regulators of baseline transcription rate." https://lnkd.in/bCmw3Fr View in LinkedIn

TRADEOFFS. "We propose that successful ancient tetraploids begin as wide crosses between two lines, each evolved for different tradeoffs between transposon silencing and negative position effects on gene expression." https://lnkd.in/bCmw3Fr View in LinkedIn

DOMINANT SUBGENOME. "Using comparative genomics, we show that genome dominance is heritable. The dominant subgenome of one postpolyploidy event remains dominant through a subsequent polyploidy event." https://lnkd.in/bCmw3Fr View in LinkedIn

Record low number of UK butterflies a 'shock and a mystery' View in LinkedIn

DUPLICATION HIERARCHY. "Whole-genome duplications happen repeatedly in a typical flowering plant lineage. Following most ancient tetraploidies, the two subgenomes are distinguishable because one subgenome, the dominant subgenome, tends to have more genes than the other subgenome. Additionally, among retained pairs, the gene on the dominant subgenome tends to be expressed more than its recessive homeolog." https://lnkd.in/bCmw3Fr View in LinkedIn

GENOME DOMINANCE. "Ancient plant polyploids contain dissimilar subgenomes. Subgenomes that have lost fewer genes are subgenomes that tend to express their genes to higher mRNA levels: “genome dominance.” Genome dominance is heritable through multiple rounds of polyploidy and over tens of millions of years." https://lnkd.in/bCmw3Fr View in LinkedIn

GENOME DOMINANCE. "Ancient plant polyploids contain dissimilar subgenomes. Subgenomes that have lost fewer genes are subgenomes that tend to express their genes to higher mRNA levels: “genome dominance.” Genome dominance is heritable through multiple rounds of polyploidy and over tens of millions of years." https://lnkd.in/bCmw3Fr View in LinkedIn

GENOME DOMINANCE. "Ancient plant polyploids contain dissimilar subgenomes. Subgenomes that have lost fewer genes are subgenomes that tend to express their genes to higher mRNA levels: “genome dominance.” Genome dominance is heritable through multiple rounds of polyploidy and over tens of millions of years." https://lnkd.in/bCmw3Fr View in LinkedIn