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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

SIZE CONSTRAINTS. "This study presents a new step toward resolving the paradoxical relationship between average genome size and ploidy level in angiosperms, suggesting that constraints on maximum genome size and maximum monoploid number for WGDs, and not only genome downsizing, limit angiosperm genome sizes in the face of frequent WGDs." (WGD = whole genome duplication). https://lnkd.in/bCmw3Fr View in LinkedIn

THEORY VS PRACTICE 2. "Similarly, and notwithstanding the uncertainty regarding actual ancestral angiosperm genome sizes, if one postulates a small ancestral genome size of, say, 300 megabases, in the absence of countervailing forces the modern G. hirsutum genome should be enormous, 43.2 gigabases (Gb), instead of the 2.4 Gb that it actually contains." http://www.amjbot.org/content/early/2015/10/09/ajb.1500320 View in LinkedIn

TRANSPOSABLE ELEMENT (TE) LOAD. "Because the two subgenomes of an allotetraploid originate from two different genomes existing tens of millions of years ago, each with what must have been different transposon populations, bloom histories, distributions, and levels, we hypothesize that a differential load of TEs in the parental lines is a sufficient explanation for the origin of subgenome dominance." https://lnkd.in/bCmw3Fr View in LinkedIn