Exploring the causes of small effective population sizes in cyst nematodes using artificial Globodera pallida populations.

ABSTRACT: The effective size of a population is the size of an ideal population which would undergo genetic drift at the same rate as the real population. The balance between selection and genetic drift depends on the effective population size ( N_e), rather than the real numbers of individuals in the population ( N). The objectives of the present study were to estimate N_e in the potato cyst nematode Globodera pallida and to explore the causes of a low N_e/ N ratio in cyst nematodes using artificial populations. Using a temporal analysis of 24 independent populations, the median N_e was 58 individuals (min N_e = 25 and max N_e = 228). N_e is commonly lower than N but in the case of cyst nematodes, the N_e/ N ratio was e

SUBMITTER: Montarry J 

PROVIDER: S-EPMC6367184 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature