A5035205395- Marine Biology and Ecology Research
- Aquatic Invertebrate Ecology and Behavior
- Genetic diversity and population structure
- Marine Bivalve and Aquaculture Studies
- Parasite Biology and Host Interactions
- Evolution and Genetic Dynamics
- Marine Ecology and Invasive Species
- Isotope Analysis in Ecology
- Fish Ecology and Management Studies
- Microbial Community Ecology and Physiology
- Environmental DNA in Biodiversity Studies
- Coral and Marine Ecosystems Studies
- Marine and coastal plant biology
- Plant and animal studies
- Marine and fisheries research
- Identification and Quantification in Food
- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Insect symbiosis and bacterial influences
- Genetic and phenotypic traits in livestock
- Genomics and Phylogenetic Studies
- Geology and Paleoclimatology Research
- Helminth infection and control
- Nematode management and characterization studies
- Paleontology and Stratigraphy of Fossils
Monterey Bay Aquarium Research Institute
2012-2023
University of California, San Diego
2023
Scripps Institution of Oceanography
2023
South Australian Museum
2004
The University of Adelaide
2004
Rutgers, The State University of New Jersey
1991-2000
Rütgers (Germany)
1998
Rutgers Sexual and Reproductive Health and Rights
1986-1998
University of Georgia
1992
Southern Methodist University
1974-1975
The human genome project has been recently complemented by whole-genome assessment sequence of 32 mammals and 24 nonmammalian vertebrate species suitable for comparative genomic analyses. Here we anticipate a precipitous drop in costs increase sequencing efficiency, with concomitant development improved annotation technology and, therefore, propose to create collection tissue DNA specimens 10 000 specifically designated the very near future. For this purpose, we, Genome 10K Community...
We describe a new genus, Osedax , and two species of annelids with females that consume the bones dead whales via ramifying roots. Molecular morphological evidence revealed belongs to Siboglinidae, which includes pogonophoran vestimentiferan worms from deep-sea vents, seeps, anoxic basins. has skewed sex ratios numerous dwarf (paedomorphic) males live in tubes females. DNA sequences reveal diverged about 42 million years ago currently maintain large populations ranging 10 5 6 adult
Recent genetic studies of asexually reproducing fishes in the genus Poeciliopsis (Poeciliidae) revealed abundant variation form multiple sympatric clones. Recurrent hybridizations between sexual species provides principal source clonal variation. The hybrids are spontaneously endowed with a reproductive mechanism that perpetuates high level heterozygosity. Migration within and river systems, mutations, also contribute to diversity these fish. Coexistence among different clones ancestors...
Within the endemic invertebrate faunas of hydrothermal vents, five biogeographic provinces are recognized. Invertebrates at two Indian Ocean vent fields (Kairei and Edmond) belong to a sixth province, despite ecological settings invertebrate-bacterial symbioses similar those both western Pacific Atlantic vents. Most organisms found these have evolutionary affinities with faunas, but shrimp that ecologically dominates vents closely resembles its Mid-Atlantic counterpart. These findings...
Abstract: The status and security of fishes in North American deserts have steadily declined this century due to man's activities naturally fragile region. We address genetic aspects the population structure desert as applicable conservation recovery programs by developing two zoogeographic models isolation gene flow. In Death Valley model populations are isolated, with no chance natural flow among them. Genetic diversity within tends be low, but divergence a species is high. Stream...
conservation Abstract Since their discovery in 19 32, all-female species of fish have provided rich material for ecological and evolutionary studies. The significance these rare organisms lies the perspective they provide on what is considered normal (i.e. biparental sexuality). Study sexual relatives has contributed to our understanding of: (i) origins evolution asexuality; (ii) ecology hybrids; (iii) genotypic environmental effects eco logically relevant traits; (iv) maintenance sex...
ral clones are particularly relevant as an era begins in which the artificial cloning of mammals, and potentially humans, is no longer a fantasy. To evolutionary biologist, sex meiotic recombination outcrossing, together create genetically diverse offspring that interact uniquely with environment each new generation. Meiotic originated our single-celled protist ancestors, except for evolution distinct male female gametes (i.e., small motile sperm Studies animal
Divers inspecting the subsurface instrument package during pre-deployment testing.
We incorporate DNA sequences from a comprehensive sampling of taxa to provide an updated phylogeny Osedax and discuss the remarkable diversity this clade siboglinids. formally describe 14 new species Monterey Bay, California, USA, raising total number properly named 25. These had formerly been recognized by informal names in various publications, on GenBank. The descriptions document occurrence dwarf males five species. distribution for 19 known occur Bay across depths 385 2898 meters bone...
Many species endemic to deep-sea methane seeps have broad geographical distributions, suggesting that they produce larvae with at least episodic long-distance dispersal. Cold-seep communities on both sides of the Atlantic share or complexes, yet larval dispersal across is expected take prohibitively long adult depths. Here, we provide direct evidence long-lived two cold-seep molluscs migrate hundreds metres above ocean floor, allowing them advantage faster surface currents may facilitate We...
Vesicomyid clams depend entirely on sulfur-oxidizing endosymbiotic bacteria for their nutriment. Endosymbionts that are transmitted cytoplasmically through eggs, such as these, should exhibit a phylogenetic pattern closely parallels the phylogeny of host mitochondrial genes. Such parallel patterns rarely observed, however, because they obscured easily by small amounts horizontal symbiont transmission or occasional switching. The present genealogy, based bacterial subunit (16S) rDNA...
Summary Symbiotic associations between microbes and invertebrates have resulted in some of the most unusual physiological morphological adaptations that evolved animal world. We document a new symbiosis marine polychaetes genus Osedax members bacterial group Oceanospirillales, known for heterotrophic degradation complex organic compounds. These organisms were discovered living on carcass grey whale at 2891 m depth Monterey Canyon, off coast California. The mouthless gutless worms are unique...
Homozygous and hybrid clonal lines of rainbow trout (Oncorhynchus mykiss) were confirmed to be isogenic using multilocus DNA fingerprinting. clones produced by androgenesis gynogenesis gametes from androgenetic male female trout, respectively. Isogenic F1 crossing homozygous fish different strains. One line showed segregation for maternally inherited fingerprint markers. The this cross, the only presumptive gynogenetic individual used in study, was thought have been followed blockage first...