A5063294595- Animal Behavior and Reproduction
- Insect and Arachnid Ecology and Behavior
- Neurobiology and Insect Physiology Research
- Developmental Biology and Gene Regulation
- Genetic diversity and population structure
- Insect behavior and control techniques
- Genetics, Aging, and Longevity in Model Organisms
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Insect Utilization and Effects
- Plant and animal studies
- Insect Resistance and Genetics
- Forest Insect Ecology and Management
- Insect-Plant Interactions and Control
- Evolution and Genetic Dynamics
- Insect symbiosis and bacterial influences
- Physiological and biochemical adaptations
- Diet and metabolism studies
- Plant Molecular Biology Research
- Plant Reproductive Biology
- CRISPR and Genetic Engineering
- Lepidoptera: Biology and Taxonomy
- Genomics and Chromatin Dynamics
- Glioma Diagnosis and Treatment
- Silk-based biomaterials and applications
- Epigenetics and DNA Methylation
University of Pittsburgh
2018-2024
University of California, Davis
2017-2022
Animal terminalia represent some of the most diverse and rapidly evolving structures in animal kingdom, for this reason have been a mainstay taxonomic description species. The Drosophila melanogaster, with its wide range experimental tools, recently become focus increased interest fields development, evolution, behavior. However, studies from different disciplines often used discrepant terminologies same anatomical structures. Consequently, terminology genital parts has barrier to...
How complex morphologies evolve is one of the central questions in evolutionary biology. Observing morphogenetic events that occur during development provides a unique perspective on origins and diversification morphological novelty. One can trace tissue origin, emergence, even regression structures to resolve murky homology relationships between species. Here, we developmental shape some most diverse organs animal kingdom—the male terminalia (genitalia analia) Drosophilids . Male genitalia...
New genes are of recent origin and only present in a subset species phylogeny. Accumulated evidence suggests that new genes, like old conserved across species, can also take on important functions be essential for the survival reproductive success organisms. Although there detailed analyses mechanisms underlying genes' gaining fertility functions, how rapidly become viability remains unclear. We focused young retro-duplicated gene (CG7804, which we named Cocoon) Drosophila originated between...
Understanding how morphological structures evolve via changes to their development is an ongoing pursuit in biology. Comparative approaches examine the expression or function of key developmental molecules (e.g. transcription factors, signaling cellular effectors) within homologous structures, and correlate these with structural divergence across species, populations, sexes, even between different body parts individuals. The female male genitalia Drosophila offer excellent opportunity...
The origin of morphological novelties has long fascinated biologists. Signaling pathways play important roles in the formation novelties, however, history how they become integrated into new developmental programs remains unclear. Here, we investigated evolution posterior lobe, a novel structure male genitalia Drosophila melanogaster. We demonstrated that Notch signaling center is required for this novelty, and identified enhancers ligand Delta, which allowed us to track evolutionary center....
ABSTRACT The ability of a single genome to produce distinct and often dramatically different male female forms is one the wonders animal development. In Drosophila melanogaster, most sexually dimorphic traits are controlled by sex-specific isoforms doublesex (dsx) transcription factor, dsx expression mostly limited cells that give rise traits. However, it unknown how this mosaic monomorphic organs arises. Here, we characterize cis-regulatory sequences control in foreleg, which contains...
During development, transcription factors and signaling molecules govern gene regulatory networks to direct the formation of unique morphologies. As changes in are often implicated morphological evolution, mapping factor landscapes is important, especially tissues that undergo rapid evolutionary change. The terminalia (genital anal structures) Drosophila melanogaster its close relatives exhibit dramatic morphology between species. While previous studies have identified network components...
The evolution of gene expression via cis-regulatory changes is well established as a major driver phenotypic evolution. However, relatively little known about the influence enhancer architecture and intergenic interactions on regulatory We address this question by examining chemosensory system in Drosophila. Drosophila prolongata males show massively increased number bristles compared to females sibling species. This increase driven sex-specific transformation ancestrally mechanosensory...
Male ornaments and other sex-specific traits present some of the most dramatic examples evolutionary innovations. Comparative studies similar but independently evolved are particularly important for identifying repeated patterns in evolution these traits. Male-specific modifications front legs have repeatedly Drosophilidae Diptera. The best understood novel structures is sex comb Drosophila melanogaster its close relatives. Here, we examine another male foreleg modification, brush, found...
The genitalia present some of the most rapidly evolving anatomical structures in animal kingdom, possessing a variety parts that can distinguish recently diverged species. In Drosophila melanogaster group, phallus is adorned with several processes, pointed outgrowths, are similar size and shape between However, complex three-dimensional nature obscure exact connection points each process. Previous descriptions based upon adult morphology have primarily assigned phallic processes by their...
The evolution of sexual traits often involves correlated changes in morphology and behavior. For example, Drosophila, divergent mating displays are accompanied by pigment patterns. To better understand how such co-evolve, we investigated the genetic basis divergence wing pigmentation display between sibling species Drosophila elegans gunungcola. males have an area black on their wings known as a spot appear to this females extending laterally during courtship. By contrast, D. gunungcola lost...
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The ovipositors of some insects are external female genitalia, which have their primary function to deliver eggs. Drosophila suzukii and its sibling species D. subpulchrella known acquired highly sclerotized enlarged upon shifts in oviposition sites from rotting ripening fruits. Inside the ovipositor plates, there scale-like polarized protrusions termed "oviprovector scales" that likely aid mechanical movement size spatial distribution scales need be rearranged following divergence...
Abstract The ability of a single genome to produce distinct and often dramatically different male female forms is one the wonders animal development. In most animals, sex-specific phenotypes are shaped by interactions between sex determination pathway spatial patterning gene networks. Drosophila melanogaster , sexually dimorphic traits controlled isoforms doublesex ( dsx ) transcription factor, expression mostly limited cells that give rise traits. However, it unknown how this mosaic...
The model organism Drosophila melanogaster has become a focal system for investigations of rapidly evolving genital morphology as well the development and functions insect reproductive structures. To follow up on previous paper outlining unifying terminology structures male terminalia in this species, we offer here detailed description female D. melanogaster. Informative diagrams micrographs are presented to provide comprehensive overview external internal females. We propose collection...
Abstract During development, transcription factors and signaling molecules govern gene regulatory networks to direct the formation of unique morphologies. As changes in are often implicated morphological evolution, mapping factor landscapes is important, especially tissues that undergo rapid evolutionary change. The terminalia (genital anal structures) Drosophila melanogaster its close relatives exhibit dramatic morphology between species. While previous studies have found network components...
Abstract Identifying the molecular origins by which new morphological structures evolve is one of long standing problems in evolutionary biology. To date, vanishingly few examples provide a compelling account how morphologies were initially formed, thereby limiting our understanding diverse forms life derived their complex features. Here, we evidence that large projections on Drosophila eugracilis phallus are implicated sexual conflict have evolved through co-option trichome genetic network....
Animal terminalia represent some of the most diverse and rapidly evolving structures in animal kingdom, for this reason have been a mainstay taxonomic description species. The Drosophila melanogaster, with its wide range experimental tools, recently become focus increased interest fields development, evolution, behavior. However, studies from different disciplines often used discrepant terminologies same anatomical structures. Consequently, terminology genital parts has barrier to...
Abstract The evolution of gene expression via cis-regulatory changes is well established as a major driver phenotypic evolution. However, relatively little known about the influence enhancer architecture and intergenic interactions on regulatory We address this question by examining chemosensory system in Drosophila . D. prolongata males show massively increased number bristles compared to females sibling species. This increase driven sex-specific transformation ancestrally mechanosensory...
Animal terminalia represent some of the most diverse and rapidly evolving structures in animal kingdom, for this reason have been a mainstay taxonomic description species. The Drosophila melanogaster, with its wide range experimental tools, recently become focus increased interest fields development, evolution, behavior. However, studies from different disciplines often used discrepant terminologies same anatomical structures. Consequently, terminology genital parts has barrier to...
Abstract The genitalia present some of the most rapidly evolving anatomical structures in animal kingdom, possessing a variety parts that can distinguish recently diverged species. In Drosophila melanogaster group, phallus is adorned with several processes, pointed outgrowths, are similar size and shape between However, complex three-dimensional nature obscure exact connection points each process. Previous descriptions based upon adult morphology have primarily assigned phallic processes by...
Abstract The evolution of sexual traits often involves correlated changes in morphology and behavior. For example, Drosophila, divergent mating displays are accompanied by pigment patterns. To better understand how such co-evolve, we investigated the genetic basis divergence wing pigmentation display between sibling species Drosophila elegans D. gunungcola . males have an area black on their wings known as a spot appear to this females extending laterally during courtship. By contrast, lacks...