@article{fdi:010042509,
  title = {{G}enetic variation for parental effects on the propensity to gregarise in {L}ocusta migratoria - art. no. 37},
  author = {{C}hapuis, {M}.{P}. and {E}stoup, {A}. and {A}ug{\'e}-{S}abatier, {A}. and {F}oucart, {A}. and {L}ecoq, {M}. and {M}ichalakis, {Y}annis},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground: {E}nvironmental parental effects can have important ecological and evolutionary consequences, yet little is known about genetic variation among populations in the plastic responses of offspring phenotypes to parental environmental conditions. {T}his type of variation may lead to rapid phenotypic divergence among populations and facilitate speciation. {W}ith respect to density- dependent phenotypic plasticity, locust species ( {O}rthoptera: family {A}crididae), exhibit spectacular developmental and behavioural shifts in response to population density, called phase change. {G}iven the significance of phase change in locust outbreaks and control, its triggering processes have been widely investigated. {W}hereas crowding within the lifetime of both offspring and parents has emerged as a primary causal factor of phase change, less is known about intraspecific genetic variation in the expression of phase change, and in particular in response to the parental environment. {W}e conducted a laboratory experiment that explicitly controlled for the environmental effects of parental rearing density. {T}his design enabled us to compare the parental effects on offspring expression of phase- related traits between two naturally- occurring, genetically distinct populations of {L}ocusta migratoria that differed in their historical patterns of high population density outbreak events. {R}esults: {W}e found that locusts from a historically outbreaking population of {L}. migratoria expressed parentally- inherited density- dependent phase changes to a greater degree than those from a historically non- outbreaking population. {C}onclusion: {B}ecause locusts from both populations were raised in a common environment during our experiment, a genetically- based process must be responsible for the observed variation in the propensity to express phase change. {T}his result emphasizes the importance of genetic factors in the expression of phase traits and calls for further investigations on density- dependent parental effects in locust phase change. {M}ore population samples with different outbreak histories need to be analyzed to demonstrate that differences in propensity to gregarise evolve because of different outbreak histories.},
  keywords = {},
  booktitle = {},
  journal = {{B}mc {E}volutionary {B}iology},
  volume = {8},
  numero = {},
  pages = {{NIL}_1--{NIL}_10},
  ISSN = {1471-2148},
  year = {2008},
  DOI = {10.1186/1471-2148-8-37},
  URL = {https://www.documentation.ird.fr/hor/fdi:010042509},
}