Mattias Siljestam

PhD student working with mathematical models of evolution at Dept of Ecology and Genetics, Uppsala University, Sweden

[Animal Ecology Uppsala @AnimEcol_UU]

Dr Siljestam in the house—huge congratulations to @MSiljestam for successfully defending his thesis last Friday! 🥳🥂 Great work and very interesting discussion with the opponent Dr Eva Kisdi & the committee!

[Karl Grieshop @karlgrieshop]

Happy to see this collaboration with @katjakasimatis and Eddie Ho out @RSocPublishing. Thanks to @arvidagren, Locke Rowe and Göran Arnqvist for the invitation to contribute to this special issue on the Resolution of Evolutionary Conflicts.

https://t.co/UFnjidNyW4

Brief 🧵

[Mattias Siljestam @MSiljestam]

Open access link: https://t.co/PyUSUASvSe

[Mattias Siljestam @MSiljestam]

Check out our new paper! We found that anisogamy doesn't inevitably lead to increased male mating competition — when gametes are limited, either sex might evolve to be more competitive.

https://t.co/86461SPH9R

#SexualSelection #Anisogamy #EvolutionaryBiology

[Mattias Siljestam @MSiljestam]

Check out our new preprint (Siljestam & Martinossi-Allibert) predicting that #anisogamy can lead to competition in either sex: The evolution of anisogamy does not always lead to male competition https://t.co/HrMkn66cjf

[Systematic Biology Programme @SystBio_UU]

Ahnesjö et al. just published "Considering Gender-Biased Assumptions in Evolutionary Biology", including a set of guidelines! Give it a read!

Link: https://t.co/IFHNa4wROh
#SystBioPaper #Gender #science

[Animal Ecology Uppsala @AnimEcol_UU]

Uppsala University @uppsalauni ranked 7th in the world in Evolutionary Biology!!!
https://t.co/OSPB45axd4

[Mattias Siljestam @MSiljestam]

@geneticsOD Interesting thought! MHC is main example of the model, but it applies to any gene with several functions important for survival. I'm not to familiar with R-genes but the model might apply to them as well if they are responsible for resistance against two or more pathogens

[Mattias Siljestam @MSiljestam]

@tonygill3 However, we do use self-binding is a potential motivation of the model mechanics.

[Mattias Siljestam @MSiljestam]

@tonygill3 The model is about diversity at the population level of a single locus. This diversity isn't limited by self-binding as even though population level diversity can reach over 100, alleles an individual would never care more than two different alleles as a heterozygote.

[Mattias Siljestam @MSiljestam]

@tonygill3 We do define heterozygot advantage as overdominance in the preprint (i.e. heterozygote has better fitness than either homozygotes). This is what allowes over 100 alleles to coexist.

[Mattias Siljestam @MSiljestam]

@MurielleAlund @AnimEcol_UU Tack!

[Mattias Siljestam @MSiljestam]

Check out our new preprint predicting high #MHC diversity under #HeterozygoteAdvantage: The evolution and maintenance of extraordinary allelic diversity
https://t.co/epMjwUGufl

[Mattias Siljestam @MSiljestam]

@DBergerBiol @bpsnieuw That is indeed an interesting find! And there will hopefully later this year be a paper out (Martinossi & Siljestam) that gives theoretical support for evolution of anisogamy under such assumptions!

[Maria cortázar🇪🇦🇸🇪🍁 @mariaCCh85]

@MSiljestam nailed in his talk!!! at #eseb2017

[Animal Ecology Uppsala @AnimEcol_UU]

#eseb2017 #eseb17 Talk by @MSiljestam Room C 12:50 Highly polymorphic loci through allelic division of labour

[Animal Ecology Uppsala @AnimEcol_UU]

#zooeko17 @MSiljestam applying allelic division of labour theory to model heterozygosity advantage