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Full-Text Articles in Life Sciences
Analysis Of Age And Growth In Two Eastern Pacific Groupers (Serranidae: Epinephelinae), Matthew Craig, Daniel Pondella, John Hafner
Analysis Of Age And Growth In Two Eastern Pacific Groupers (Serranidae: Epinephelinae), Matthew Craig, Daniel Pondella, John Hafner
Daniel Pondella
In an attempt to characterize species specific-growth rates of two Eastern Pacific groupers, individuals from two sympatric species, Epinephelus labriformis (n = 173), and Cephalopholis panamensis (n = 127), were collected at various localities in Mexico and the Galápagos archipelago in 1997 and 1998. Sagittal otoliths were removed, and age of each individual was determined by direct visual inspection of annuli present following sectioning. Length/weight relationships were determined, and growth curves were generated using the von Bertalanffy growth model. The two species demonstrated similar growth rates, yet, as determined by the von Bertalanffy parameters, E. labriformis tended towards a larger …
Action Of Repeat-Induced Point Mutation On Both Strands Of A Duplex And On Tandem Duplications Of Various Sizes In Neurospora, Michael Watters, Thomas Randall, Brian Margolin, Eric Selker, David Stadler
Action Of Repeat-Induced Point Mutation On Both Strands Of A Duplex And On Tandem Duplications Of Various Sizes In Neurospora, Michael Watters, Thomas Randall, Brian Margolin, Eric Selker, David Stadler
Michael Watters
In Neurospora crassa, DNA sequence duplications are detected and altered efficiently during the sexual cycle by a process known as RIP (repeat-induced point mutation). Affected sequences are subjected to multiple GC-to-AT mutations. To explore the pattern in which base changes are laid down by RIP we examined two sets of strains. First, we examined the products of a presumptive spontaneous RIP event at the mtr locus. Results of sequencing suggested that a single RIP event produces two distinct patterns of change, descended from the two strands of an affected DNA duplex. Equivalent results were obtained using an exceptional tetrad from …
The C. Elegans Homeodomain Gene Unc-42 Regulates Chemosensory And Glutamate Receptor Expression, Renee Baran, Rachel Aronoff, Gian Garriga
The C. Elegans Homeodomain Gene Unc-42 Regulates Chemosensory And Glutamate Receptor Expression, Renee Baran, Rachel Aronoff, Gian Garriga
Renee Baran
Genes that specify cell fate can influence multiple aspects of neuronal differentiation, including axon guidance, target selection and synapse formation. Mutations in the unc-42 gene disrupt axon guidance along the C. elegans ventral nerve cord and cause distinct functional defects in sensory-locomotory neural circuits. Here we show that unc-42 encodes a novel homeodomain protein that specifies the fate of three classes of neurons in the Caenorhabditis elegans nervous system: the ASH polymodal sensory neurons, the AVA, AVD and AVE interneurons that mediate repulsive sensory stimuli to the nematode head and anterior body, and a subset of motor neurons that innervate …
Oviposition Preference And Offspring Performance Of Eurosta Solidaginis On Genotypes Of Solidago Altissima, Warren Abrahamson, T. Craig, J. Itami, J. Horner
Oviposition Preference And Offspring Performance Of Eurosta Solidaginis On Genotypes Of Solidago Altissima, Warren Abrahamson, T. Craig, J. Itami, J. Horner
Warren G. Abrahamson, II
No abstract provided.
Episodic Reproduction In Two Fire-Prone Palms, Serenoa Repens And Sabal Etonia (Palmae), Warren Abrahamson
Episodic Reproduction In Two Fire-Prone Palms, Serenoa Repens And Sabal Etonia (Palmae), Warren Abrahamson
Warren G. Abrahamson, II
No abstract provided.
Influence Of Plant Genotype And Early-Season Water Deficits On Oviposition Preference And Offspring Performance In Eurosta Solidaginis (Diptera: Tephritidae), Warren Abrahamson, J. Horner
Influence Of Plant Genotype And Early-Season Water Deficits On Oviposition Preference And Offspring Performance In Eurosta Solidaginis (Diptera: Tephritidae), Warren Abrahamson, J. Horner
Warren G. Abrahamson, II
No abstract provided.
Host-Plant Genotype And Other Herbivores Influence Goldenrod Stem Galler Preference And Performance, Warren Abrahamson, J. Cronin
Host-Plant Genotype And Other Herbivores Influence Goldenrod Stem Galler Preference And Performance, Warren Abrahamson, J. Cronin
Warren G. Abrahamson, II
No abstract provided.