Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria
Phenotypic plasticity in body size is a product of modification of the developmental pathway. Although hatchlings of the desert locust, Schistocerca gregaria, show egg size-dependent plasticity in body size, it remains unclear how embryogenesis during egg development regulates final embryonic body size. To determine the developmental pathway causing body size variation at hatching, we examined egg and embryonic development at the early, middle, and late egg developmental stages in S. gregaria by comparing small and large eggs. Crowd-reared females produced larger eggs than isolated-reared females. The daily egg developmental rate was similar between small and large eggs: eggs dramatically absorbed external water after days 3 to 7 and nearly doubled the initial egg weight at the late stage of day 12. Morphological measurements of eggs and embryos at different days after oviposition revealed that large eggs were longer than small eggs throughout developmental stages. However, embryo length was similar between small and large eggs at the early stage (anatrepsis). Embryos begin to absorb yolk into their bodies after blastokinesis. The size of large-egg embryos increased significantly from the middle stage (katatrepsis) due to absorption of more yolk than small eggs. Egg length and embryo length were conspicuously larger in large eggs than in small eggs on day 12 of late katatrepsis. These results suggest that egg size did not influence the egg developmental rate and initial embryo size. Large eggs had more yolk and space, resulting in larger final embryos than small eggs. The amount of yolk and size of eggshells during katatrepsis could play a key role in determining hatchling body size in S. gregaria.
Main Authors: | , , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | H10 - Ravageurs des plantes, Schistocerca gregaria, phénotype, développement embryonnaire, stade de développement, plasticité phénotypique, http://aims.fao.org/aos/agrovoc/c_31931, http://aims.fao.org/aos/agrovoc/c_5776, http://aims.fao.org/aos/agrovoc/c_2545, http://aims.fao.org/aos/agrovoc/c_2230, http://aims.fao.org/aos/agrovoc/c_12386358, http://aims.fao.org/aos/agrovoc/c_3081, http://aims.fao.org/aos/agrovoc/c_4660, |
Online Access: | http://agritrop.cirad.fr/603307/ http://agritrop.cirad.fr/603307/1/PUB740.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-603307 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-6033072024-01-29T05:50:33Z http://agritrop.cirad.fr/603307/ http://agritrop.cirad.fr/603307/ Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria. Maeno Koutaro Ould, Piou Cyril, Leménager Nicolas. 2023. Journal of Insect Physiology, 145:104467, 9 p.https://doi.org/10.1016/j.jinsphys.2022.104467 <https://doi.org/10.1016/j.jinsphys.2022.104467> Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria Maeno, Koutaro Ould Piou, Cyril Leménager, Nicolas eng 2023 Journal of Insect Physiology H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 France Mauritanie http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 Phenotypic plasticity in body size is a product of modification of the developmental pathway. Although hatchlings of the desert locust, Schistocerca gregaria, show egg size-dependent plasticity in body size, it remains unclear how embryogenesis during egg development regulates final embryonic body size. To determine the developmental pathway causing body size variation at hatching, we examined egg and embryonic development at the early, middle, and late egg developmental stages in S. gregaria by comparing small and large eggs. Crowd-reared females produced larger eggs than isolated-reared females. The daily egg developmental rate was similar between small and large eggs: eggs dramatically absorbed external water after days 3 to 7 and nearly doubled the initial egg weight at the late stage of day 12. Morphological measurements of eggs and embryos at different days after oviposition revealed that large eggs were longer than small eggs throughout developmental stages. However, embryo length was similar between small and large eggs at the early stage (anatrepsis). Embryos begin to absorb yolk into their bodies after blastokinesis. The size of large-egg embryos increased significantly from the middle stage (katatrepsis) due to absorption of more yolk than small eggs. Egg length and embryo length were conspicuously larger in large eggs than in small eggs on day 12 of late katatrepsis. These results suggest that egg size did not influence the egg developmental rate and initial embryo size. Large eggs had more yolk and space, resulting in larger final embryos than small eggs. The amount of yolk and size of eggshells during katatrepsis could play a key role in determining hatchling body size in S. gregaria. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/603307/1/PUB740.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.jinsphys.2022.104467 10.1016/j.jinsphys.2022.104467 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jinsphys.2022.104467 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.jinsphys.2022.104467 info:eu-repo/grantAgreement///21K05627//(JAP) KAKENHI/ |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 |
spellingShingle |
H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 Maeno, Koutaro Ould Piou, Cyril Leménager, Nicolas Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
description |
Phenotypic plasticity in body size is a product of modification of the developmental pathway. Although hatchlings of the desert locust, Schistocerca gregaria, show egg size-dependent plasticity in body size, it remains unclear how embryogenesis during egg development regulates final embryonic body size. To determine the developmental pathway causing body size variation at hatching, we examined egg and embryonic development at the early, middle, and late egg developmental stages in S. gregaria by comparing small and large eggs. Crowd-reared females produced larger eggs than isolated-reared females. The daily egg developmental rate was similar between small and large eggs: eggs dramatically absorbed external water after days 3 to 7 and nearly doubled the initial egg weight at the late stage of day 12. Morphological measurements of eggs and embryos at different days after oviposition revealed that large eggs were longer than small eggs throughout developmental stages. However, embryo length was similar between small and large eggs at the early stage (anatrepsis). Embryos begin to absorb yolk into their bodies after blastokinesis. The size of large-egg embryos increased significantly from the middle stage (katatrepsis) due to absorption of more yolk than small eggs. Egg length and embryo length were conspicuously larger in large eggs than in small eggs on day 12 of late katatrepsis. These results suggest that egg size did not influence the egg developmental rate and initial embryo size. Large eggs had more yolk and space, resulting in larger final embryos than small eggs. The amount of yolk and size of eggshells during katatrepsis could play a key role in determining hatchling body size in S. gregaria. |
format |
article |
topic_facet |
H10 - Ravageurs des plantes Schistocerca gregaria phénotype développement embryonnaire stade de développement plasticité phénotypique http://aims.fao.org/aos/agrovoc/c_31931 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2545 http://aims.fao.org/aos/agrovoc/c_2230 http://aims.fao.org/aos/agrovoc/c_12386358 http://aims.fao.org/aos/agrovoc/c_3081 http://aims.fao.org/aos/agrovoc/c_4660 |
author |
Maeno, Koutaro Ould Piou, Cyril Leménager, Nicolas |
author_facet |
Maeno, Koutaro Ould Piou, Cyril Leménager, Nicolas |
author_sort |
Maeno, Koutaro Ould |
title |
Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
title_short |
Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
title_full |
Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
title_fullStr |
Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
title_full_unstemmed |
Egg size-dependent embryonic development in the desert locust, Schistocerca gregaria |
title_sort |
egg size-dependent embryonic development in the desert locust, schistocerca gregaria |
url |
http://agritrop.cirad.fr/603307/ http://agritrop.cirad.fr/603307/1/PUB740.pdf |
work_keys_str_mv |
AT maenokoutaroould eggsizedependentembryonicdevelopmentinthedesertlocustschistocercagregaria AT pioucyril eggsizedependentembryonicdevelopmentinthedesertlocustschistocercagregaria AT lemenagernicolas eggsizedependentembryonicdevelopmentinthedesertlocustschistocercagregaria |
_version_ |
1792500469826846720 |