Michelle Stitzer
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mcstitzer.bsky.social
Michelle Stitzer
@mcstitzer.bsky.social
postdoc at cornell | evolution of transposable elements in corn and other grasses
Was so great to have the assembly of a member of sister tribe Paspaleae to use as an outgroup. Thanks!
January 31, 2025 at 11:41 PM
A monumental effort -- huge thanks to everybody involved! And see what individual plants and their genomes look like here: mcstitzer.github.io/panand_assemblies
January 27, 2025 at 9:33 PM
We're not entirely sure why Andropogoneae resist the commonly observed patterns that follow polyploidy, but check out the preprint for our thoughts!
January 27, 2025 at 9:33 PM
Instead, we see a surprising lack of genome evolution in Andropogoneae polyploids: they retain almost all chromosomes, keep most genes, and their TEs only sometimes expand.
January 27, 2025 at 9:33 PM
We uncovered 14 independent origins of polyploidy in these grasses, and expected to see patterns similar to those observed in maize: a reduction in chromosome number, the loss of duplicate genes, and bursts of transposable element activity.
January 27, 2025 at 9:33 PM