Jenny Donelan - Profile and Journalist Details
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Jenny Donelan
Verified
Managing Editor, Information Display
Boston
Beats
Travel Mental Health Wellness and much more
Content
Developmental diet alters the fecundity-longevity relationship and age-related gene expression in Drosophila melanogaster
By David Collins, David Charles Prince, Jenny Donelan Verified, Tracey Chapman| bioRxiv@ New Results doi: https://doi.org/10.1101/2023.01.16.524185 AbstractThe standard evolutionary theory of ageing predicts a negative relationship (trade-off) between fecundity and longevity. However, this relationship can become positive: (i) under the influence of longevity-enhancing mutations; (ii) when individuals have unequal resources; and (iii) in eusocial insects, in which reproductive queens outlive less- or non-reproductive workers.
Eusocial insect queens show costs of reproduction and transcriptomic signatures of reduced longevity
By David Collins, Jenny Donelan Verified, Tracey Chapman, David Charles Prince| bioRxiv@ AbstractEusocial insect queens have been suggested to be counter-examples to the standard evolutionary theory of ageing through lacking costs of reproduction. Using the bumblebee (Bombus terrestris), we tested this hypothesis experimentally against the alternative that costs of reproduction exist in eusocial insect queens, but are latent, resulting in the positive fecundity-longevity relationship typically found in unmanipulated queens.
Developmental diet alters the fecundity-longevity relationship and age-related gene expression in Drosophila melanogaster
By David Collins, David Charles Prince, Jenny Donelan Verified, Tracey Chapman| bioRxiv@ New Results doi: https://doi.org/10.1101/2023.01.16.524185 AbstractThe standard evolutionary theory of ageing predicts a negative relationship (trade-off) between fecundity and longevity. However, this relationship can become positive: (i) under the influence of longevity-enhancing mutations; (ii) when individuals have unequal resources; and (iii) in eusocial insects, in which reproductive queens outlive less- or non-reproductive workers.
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Information Display
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