A5021831092- Plant and animal studies
- Genetic diversity and population structure
- Animal Behavior and Reproduction
- Fish Ecology and Management Studies
- Insect and Arachnid Ecology and Behavior
- Neurobiology and Insect Physiology Research
- Pancreatic function and diabetes
- Viral Infectious Diseases and Gene Expression in Insects
- Genetics and Neurodevelopmental Disorders
- Epigenetics and DNA Methylation
- Reproductive biology and impacts on aquatic species
- Genetics and Physical Performance
- Pregnancy and preeclampsia studies
- Fish Biology and Ecology Studies
- Genomics and Chromatin Dynamics
- Ichthyology and Marine Biology
- Genetic Syndromes and Imprinting
- Pancreatic and Hepatic Oncology Research
- Animal Ecology and Behavior Studies
- Marine animal studies overview
- Ecology and Vegetation Dynamics Studies
- Environmental Toxicology and Ecotoxicology
- Neuroendocrine Tumor Research Advances
- Fish biology, ecology, and behavior
Ohio Wesleyan University
2011-2023
University of California, Riverside
2001-2011
University of North Carolina at Chapel Hill
2010
University of Washington
2006
Google (United States)
2006
University of Maryland, College Park
1999
Molecular analyses in several taxa have consistently shown that genes involved reproduction are rapidly evolving and subjected to positive selection. The mechanism behind this evolution is not clear, but proposed hypotheses involve the coevolution between males females. In Drosophila, male reproductive proteins (Acps) male-male male-female interactions show evidence of rapid adaptive evolution. What has been missing from Drosophila literature identification analysis female genes. Recently,...
Translation of noncoding common variant association signals into meaningful molecular and biological mechanisms explaining disease susceptibility remains challenging. For the type 2 diabetes signal in JAZF1 intron 1, we hypothesized that underlying risk variants have cis-regulatory effects islets or other diabetes-relevant cell types. We used maps experimentally predicted open chromatin regions to prioritize for functional follow-up studies transcriptional activity. Twelve containing...
ABSTRACT Placentae show considerable diversity in a number of nonmammalian, viviparous organisms, including amphibians, reptilian sauropsids, teleost fish, and chondrichthyes. However, the evolutionary processes driving evolution placenta are still debated. In fishes, genus Poeciliopsis (Poeciliidae) offers rare opportunity for studying placental evolution: extensive placentation has evolved three independent times within last 750,000 years there is substantial interspecific variation degree...
Matrotrophic fish in the genus Poeciliopsis (Poeciliidae) have a placenta-like structure used postfertilization maternal provisioning of developing embryo. To understand better and function placenta, we derived cDNA libraries from follicular placenta 2 matrotrophic sister species, P. turneri presidionis. These species inherited their common ancestor represent one 3 independent origins placentas Poeciliopsis. Expressed sequence tags (ESTs) were generated putative was determined using BLASTX...
Evolution Canyon in Lower Nahal Oren, Mount Carmel, Israel has been identified as a location promoting sympatric speciation. Several previous studies on Drosophila melanogaster populations from the two disparate slopes of canyon suggest that these are experiencing incipient However, recent microsatellite data did not reveal expected level population differentiation. Given importance this system for studying speciation, we set out to test predictions speciation...
Abstract In viviparous, teleost fish, with postfertilization maternal nutrient provisioning, embryonic structures that facilitate maternal‐fetal transfer are predicted to be present. For the family Poeciliidae, only a handful of morphological studies have explored these specializations. Here, we present comparative study in viviparous poeciliid genus, Poeciliopsis . Using microscopy techniques, examine surface epidermis species vary their level provisioning and placentation across two...
Post-mating, prefertilization inbreeding avoidance (PPIA) is well established in plants but not animals. Support for animal PPIA comes from sperm competition studies showing success of a male's gametes declining with his relatedness to the multiply mated female; however, such confound female-male and male-male interaction. To avoid this problem, we investigated offspring productivity singly Drosophila melanogaster females using flies four different genetic backgrounds. Our experiments that...
Abstract Phenotypic plasticity can be broadly defined as the ability of one genotype to produce more than phenotype when exposed different environments, modification developmental events by environment, or an individual organism alter its in response changes environmental conditions. Not surprisingly, study phenotypic is innately interdisciplinary and encompasses aspects behavior, development, ecology, evolution, genetics, genomics, multiple physiological systems at various levels biological...
Evolution Canyon in Lower Nahal Oren, Mount Carmel, Israel has been identified as a location promoting sympatric speciation. Several previous studies on Drosophila melanogaster populations from the two disparate slopes of canyon suggest that these are experiencing incipient However, recent microsatellite data did not reveal expected level population differentiation. Given importance this system for studying speciation, we set out to test predictions speciation hypothesis—genetic...