Efficient Bayesian inference under the multispecies coalescent with migration.
Efficient Bayesian inference under the multispecies coalescent with migration.
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DOI:
10.1073/pnas.2310708120
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发表时间:
2023-10-31
影响因子:
11.1
通讯作者:
Yang, Ziheng
中科院分区:
文献类型:
--
作者:
Flouri, Tomas;Jiao, Xiyun;Huang, Jun;Rannala, Bruce;Yang, Ziheng
Inference of gene flow using genomic data requires powerful methods as the process of coalescent, migration, and mutation is highly stochastic. However, it is challenging to implement the multispecies coalescent with migration (MSC-M) model in a full likelihood framework correctly and efficiently. We developed Markov chain Monte Carlo algorithms under the MSC-M model and implement them in our Bayesian program bpp to achieve efficient computation. We conduct extensive validations and tests and show that our implementation is reliable and can handle large datasets with thousands of loci. We analyzed genomic data from the Anopheles mosquitoes to demonstrate the feasibility of using genomic data to test for gene flow and to estimate the rate of gene flow. Analyses of genome sequence data have revealed pervasive interspecific gene flow and enriched our understanding of the role of gene flow in speciation and adaptation. Inference of gene flow using genomic data requires powerful statistical methods. Yet current likelihood-based methods involve heavy computation and are feasible for small datasets only. Here, we implement the multispecies-coalescent-with-migration model in the Bayesian program bpp, which can be used to test for gene flow and estimate migration rates, as well as species divergence times and population sizes. We develop Markov chain Monte Carlo algorithms for efficient sampling from the posterior, enabling the analysis of genome-scale datasets with thousands of loci. Implementation of both introgression and migration models in the same program allows us to test whether gene flow occurred continuously over time or in pulses. Analyses of genomic data from Anopheles mosquitoes demonstrate rich information in typical genomic datasets about the mode and rate of gene flow.
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影响因子:
1.9
作者:
Bahlo, M;Griffiths, RC
通讯作者:
Griffiths, RC
影响因子:
6.5
作者:
Dalquen, Daniel A.;Zhu, Tianqi;Yang, Ziheng
通讯作者:
Yang, Ziheng
影响因子:
6.5
作者:
Blischak, Paul D.;Chifman, Julia;Kubatko, Laura S.
通讯作者:
Kubatko, Laura S.
DOI:
10.1093/g3journal/jkac040
发表时间:
2022-04-04
期刊:
G3 (Bethesda, Md.)
影响因子:
--
作者:
Beerli P;Ashki H;Mashayekhi S;Palczewski M
通讯作者:
Palczewski M
影响因子:
3.3
作者:
Costa RJ;Wilkinson-Herbots H
通讯作者:
Wilkinson-Herbots H