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My primary research interests concern understanding the forces driving patterns of nucleotide polymorphism and genome evolution in natural plant populations. I am particularly interested in questions such as: 1) What is the relative importance of mutation vs. natural selection in driving the evolution of genome structure? 2) How do population history and mating systems influence the structuring of genetic variability and the effectiveness of natural selection? 3) What is the rate and strength of adaptive evolution and deleterious mutation, and what is their genetic basis? I use several main approaches to address these questions, including the collection and analysis of DNA sequence polymorphism and molecular evolution data, the analysis of large-scale genome sequence information, and the use of population genetic theory for testing hypotheses and understanding empirical patterns. These approaches are applied in a comparative context, making use of both model and non-model organisms, to understand the forces driving differences within and among genomes in patterns of genome diversity and structure. Current projects include:
Characterizing the forces driving transposable element abundance and evolution
Investigating the effects of recombination and mating system on genome evolution and diversity
Distinguishing the effects of demographic history and natural selection on genetic diversity
Role of gene and genome duplication on species diversification and genome evolution
Characterizing the forces driving transposable element abundance and evolution
Investigating the effects of recombination and mating system on genome evolution and diversity
Distinguishing the effects of demographic history and natural selection on genetic diversity
Role of gene and genome duplication on species diversification and genome evolution
研究兴趣
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PLOS GENETICSno. 12 (2023): e1010865-e1010865
Bianca Sacchi,Zoë Humphries, Jana Kružlicová, Markéta Bodláková,Cassandre Pyne,Baharul Choudhury,Yunchen Gong,Václav Bačovský,Roman Hobza,Spencer C.H. Barrett,Stephen I. Wright
biorxiv(2023)
Joanna L. Rifkin, Solomiya Hnatovzka,Meng Yuan,Bianca M Sacchi, B. I. Choudhury,Yunchen Gong,Pasi Rastas,Spencer C. H. Barrett,Stephen I. Wright
bioRxiv (Cold Spring Harbor Laboratory) (2021)
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