A life-history allele of large effect shortens developmental time in a wild insect population

S Cheng, CGC Jacobs, EA Mogollón Pérez… - Nature ecology & …, 2024 - nature.com
Developmental time is a key life-history trait with large effects on Darwinian fitness. In many
insects, developmental time is currently under strong selection to minimize ecological …

The molecular underpinnings of body size regulation: Transcriptional changes in foxo and mTor in Drosophila melanogaster selected for fast development

NK Shrivastava, A Yadav, N Rauhila, AK Farand… - Gene Reports, 2023 - Elsevier
One of biology's most perplexing ideas is the biological control of an organism's size. Even if
many questions remain unanswered, it can be logically implied that the size of an individual …

Fitness consequences of biochemical adaptation in Drosophila melanogaster populations under simultaneous selection for faster pre-adult development and …

K Sharma, MN Shakarad - Scientific Reports, 2021 - nature.com
In holometabolous insects like Drosophila melanogaster, critical size is an important time
point during larval life, for irreversible commitment to metamorphosis. Here, we studied the …

Correlated responses in basal immune function in response to selection for fast development in Drosophila melanogaster

NK Shrivastava, MN Shakarad - Journal of Evolutionary Biology, 2023 - academic.oup.com
Often, immunity is invoked in the context of infection, disease and injury. However, an ever
alert and robust immune system is essential for maintaining good health, but resource …

Heightened immune surveillance in Drosophila melanogaster populations selected for faster development and extended longevity

NK Shrivastava, N Chauhan, MN Shakarad - Heliyon, 2022 - cell.com
Maximization of life-history traits is under constraints due to both, limitations of resource
acquisition and the restricted pathways of resource allocation. Drosophila melanogaster has …

[HTML][HTML] Wing patterning in faster developing Drosophila is associated with high ecdysone titer and wingless expression

N Chauhan, NK Shrivastava, N Agrawal… - Mechanisms of …, 2020 - Elsevier
Abstract 'Developmental robustness' is the ability of biological systems to maintain a stable
phenotype despite genetic, environmental or physiological perturbations. In holometabolous …

[PDF][PDF] A novel allele of large effect that alters developmental time and mediates trade-offs

S Cheng, EAM Pérez, D Chen… - Shixiong …, 2023 - scholarlypublications …
During current climate change, insect developmental time can adapt quickly to match shifted
host plant or prey availability. However, the genetic basis of such adaptation in …

Genetic basis of variation in immune function in Drosophila melanogaster selected for fast development and late reproduction

KT Chandrashekara, NK Shrivastava, N Chauhan… - 2024 - researchsquare.com
Genes with immune functions are rapidly evolving genes. Understanding the genetic
architecture that facilitates this change is a challenge for evolutionary biologists. Previously …

[HTML][HTML] Influence of photoperiod on thermal responses in body size, growth and development in Lycaena phlaeas (Lepidoptera: Lycaenidae)

M Semsar-Kazerouni, H Siepel… - Current Research in Insect …, 2022 - Elsevier
Many ectotherms species grow faster but attain a smaller body size when reared under
warmer conditions, a phenomenon known as the Temperature-Size Rule (TSR). This rule …

Evolution of “Live fast, die late” life history strategy in Drosophila melanogaster males

M Shakarad, A Farand, N Shrivastava, N Rauhila… - 2024 - researchsquare.com
In holometabolus insects, fitness is intricately linked with body size. Large males with high
energy reserves often adopt 'live fast, die young'life-history strategy to maximize fitness …