학술논문

Population genetics: coalescence rate and demographic parameters inference
Document Type
article
Source
Peer Community Journal, Vol 3, Iss , Pp - (2023)
Subject
population genetics
demographic history inference
coalescent theory
coalescence rate
population structure
IICR
Archaeology
CC1-960
Science
Language
English
ISSN
2804-3871
Abstract
Inferring the demographic history of species is a great challenge in population genetics. This history is classically represented as a history of size changes, ignoring population structure. We present here the work carried out over the last decade around the concept of IICR (Inverse Instantaneous Coalescence Rate), which makes it possible to link, on the one hand, the history of the true population size for a panmictic population, and the inferred size, sometimes called "effective size", when structure is taken into account. We show that population structure can lead to misinterpretations of some demographic history inference results, we propose a framework for inferring structure-specific demographic parameters (number and size of subpopulations, migration rates), and we analyze the link between IICR and some form of selection modeling on genetic sequences.