@article{fdi:010070875, title = {{E}xploring the relationship between tychoparthenogenesis and inbreeding depression in the {D}esert {L}ocust, {S}chistocerca gregaria}, author = {{L}ittle, {C}. {J}. and {C}hapuis, {M}. {P}. and {B}londin, {L}. and {C}hapuis, {E}lodie and {J}ourdan-{P}ineau, {H}.}, editor = {}, language = {{ENG}}, abstract = {{T}ychoparthenogenesis, a form of asexual reproduction in which a small proportion of unfertilized eggs can hatch spontaneously, could be an intermediate evolutionary link in the transition from sexual to parthenogenetic reproduction. {T}he lower fitness of tychoparthenogenetic offspring could be due to either developmental constraints or to inbreeding depression in more homozygous individuals. {W}e tested the hypothesis that in populations where inbreeding depression has been purged, tychoparthenogenesis may be less costly. {T}o assess this hypothesis, we compared the impact of inbreeding and parthenogenetic treatments on eight life-history traits (five measuring inbreeding depression and three measuring inbreeding avoidance) in four laboratory populations of the desert locust, {S}chistocerca gregaria, with contrasted demographic histories. {O}verall, we found no clear relationship between the population history (illustrated by the levels of genetic diversity or inbreeding) and inbreeding depression, or between inbreeding depression and parthenogenetic capacity. {F}irst, there was a general lack of inbreeding depression in every population, except in two populations for two traits. {T}his pattern could not be explained by the purging of inbreeding load in the studied populations. {S}econd, we observed large differences between populations in their capacity to reproduce through tychoparthenogenesis. {O}nly the oldest laboratory population successfully produced parthenogenetic offspring. {H}owever, the level of inbreeding depression did not explain the differences in parthenogenetic success between all studied populations. {D}ifferences in development constraints may arise driven by random and selective processes between populations.}, keywords = {desert locust ; inbreeding depression ; parthenogenesis ; {S}chistocerca gregaria}, booktitle = {}, journal = {{E}cology and {E}volution}, volume = {7}, numero = {15}, pages = {6003--6011}, ISSN = {2045-7758}, year = {2017}, DOI = {10.1002/ece3.3103}, URL = {https://www.documentation.ird.fr/hor/fdi:010070875}, }