Lineage-specific gene loss is considered one of the processes contributing to speciation and genome diversity. Such gene loss has been inferred from interspecies comparisons of orthologous DNA segments. Examples of intraspecific gene loss are rare. Here we report identification of a gene, designated Crs-1 (creeping specific-1), that appears to be in the process of being lost from heterozygous p...

On an inclined glass plate the slug Agriolimax orients and creeps upward or downward. The angle of orientation on the plane (theta) is proportional to the logarithm of the component of gravity in the creeping plane. The coefficient of variability of the measured values of (theta) decreases linearly as the logarithm at the gravity component in the creeping plane increases. The cosine of the angl...

Gene flow from transgenic glyphosate-resistant crops can result in the adventitious presence of the transgene, which may negatively impact markets. Gene flow can also produce glyphosate-resistant plants that may interfere with weed management systems. The objective of this article is to review the gene flow literature as it pertains to glyphosate-resistant crops. Gene flow is a natural phenomen...

This paper studies the long-term migration of disturbed regolith materials on surface Solar System small bodies from viewpoint nonlinear dynamics. We propose an approximation model for secular mass movement, which combines complex topography and irregular gravitational field. Choosing asteroid 101955 Bennu as a representative, global change dynamical environment is examined, presents division c...

Grass selections including 10 zoysiagrasses, 18 paspalums, 34 Bermuda grasses, tall fescue, creeping red fescue, and perennial ryegrasses with andwithout endophyte were evaluated for potential resistance to fall armyworm, Spodoptera frugiperda (J. E. Smith), larvae. Laboratory evaluations assessed the degree of antibiosis among 70 grass lines to Þrst-instar fall armyworms. When all parametersme...