PHENOTYPIC VARIATION IN THE BRYOZOAN LEIOCLEMA PUNCTATUM (HALL, 1858) FROM...

Journal of Paleontology;  November 1, 2006 ;     700+ words ......evaluate microenvironmentally induced phenotypic variation in the Paleozoic trepostome bryozoan...SMALL-SCALE, MICROENVIRONMENTALLY induced phenotypic variation in the fossil record is often difficult...unusual opportunity to evaluate phenotypic variation using the trepostome ...

The Ecology and Evoluion of Inductible Defenses

Northeastern Naturalist;  January 1, 2001 ;     86 words ......Paperback. $35, ISBN 0691004943. A fine series of essays on phenotypic variation of shape, coloration, structural ornamentation, armouring...insights into ecological consequences and evolutionary causes of phenotypic variation.

Genomic Survey of Gene Expression Diversity in Arabidopsis thaliana

Genetics;  February 1, 2006 ;     700+ words ......diversity in gene expression. NATURAL phenotypic variation is often quantitatively distributed...can be a primary genetic cause of phenotypic variation in populations. Some recent studies...how DNA variation contributes to phenotypic variation. Recent advances in technology have...

Evolutionary Capacitance May Be Favored by Natural Selection

Genetics;  July 1, 2005 ;     700+ words ......evolutionary biology is how sufficient phenotypic variation can be generated and maintained...environments. A population with very little phenotypic variation will be well adapted to a stable...genetic variation, revealing heritable phenotypic variation. These include partial loss of ...

Extensive Phenotypic Variation in Early Flowering Mutants of Arabidopsis1

Plant Physiology;  May 1, 2004 ;     700+ words ......of mutants presents no detectable phenotypic variation. Mutants are characterized by a...knowledge, extensive characterization of phenotypic variation in early flowering mutants correlates...of pleiotropy and distribution of phenotypic variation in mutants should thus help to ...

Joint Estimates of Quantitative Trait Locus Effect and Frequency Using...

Genetics;  June 1, 2007 ;     700+ words ......and 8.7%, respectively, to total phenotypic variation in male abdominal and sternopleural...have estimates of the fraction of phenotypic variation that is due to genetic factors...of the alleles that contribute to phenotypic variation. Are alleles at quantitative trait...

Craniometric variation in the Americas

Human Biology;  December 1, 2002 ;     700+ words ......environmental forces responsible for phenotypic variation, which allows one to address large-sca...directed at investigating genotypic and phenotypic variation among past and present New World...assumptions be made about the amount of phenotypic variation present in the Americas ...

Development of a Linkage Map and Mapping of Phenotypic Polymorphisms in a...

Genetics;  July 1, 2006 ;     700+ words ......which are thought to contribute to phenotypic variation in natural and controlled settings...location of genes that influence phenotypic variation means that patterns of linkage disequilibrium...greenhouse) where nongenetic sources of phenotypic variation are minimized. On the one ...

Role of FRIGIDA and FLOWERING LOCUS C in Determining Variation in...

Plant Physiology;  June 1, 2005 ;     700+ words ......variation that has led to the adaptive phenotypic variation in flowering time. A central aim...range of climatic conditions. This phenotypic variation is attracting an increasing amount...represent only a limited amount of the phenotypic variation present in the species. Extensive...

Genetic Variation in Drosophila melanogaster Resistance to Infection: A...

Genetics;  November 1, 2006 ;     700+ words ......genes, such as Tehao, contributes to phenotypic variation in the suppression of only a subset...18-wheeler explain >20% of the phenotypic variation in resistance to L. lactis and E...polymorphism that contributes to phenotypic variation in resistance to infection. In Drosophila...

MALE MATING SUCCESS: Preference or Prowess? Investigating Sexual Selection...

The American Biology Teacher;  August 1, 2007 ;     700+ words ......requirements for evolution by natural selection: * phenotypic variation * heritability of phenotypic variation * differential survival and reproduction based on phenotypic variation. Then we proceed by introducing the concept of sexual...

Historical explanations of phenotypic variation in the plethodontid...

Proceedings of the North Dakota Academy of Science;  April 1, 2001 ;     700+ words ......shape variables from these values. Phenotypic variation was assessed using each set of shape...evolutionary hypothesis and the observed phenotypic variation was then determined using Mantel...hypotheses were associated with phenotypic variation, but when the effect of geography...

Natural Variation for Alleles Under Epigenetic Control by the Maize...

Genetics;  October 1, 2007 ;     700+ words ......molecular mechanisms contribute to the phenotypic variation within a species. Allelic variation...structure, can also contribute to phenotypic variation. However, the relative importance...epigenetic variation in contributing to phenotypic variation is not well understood. ...

Genetic Modification of the Schisis Phenotype in a Mouse Model of X-Linked...

Genetics;  March 1, 2008 ;     700+ words ......phenotypic variability. Interestingly, phenotypic variation is observed even among family members...potentially be responsible for the phenotypic variation in human XLRS. X-LINKED retinoschisis...intrafamilial and interfamilial phenotypic variation suggests the existence of ...

Developmental Environment Alters Conditional Aggression in Zebrafish

Copeia;  December 15, 2005 ;     700+ words ......fundamental factors influencing phenotypic variation into genetic and environmental...interactions in the production of phenotypic variation. Plasticity and G E interactions...critical and understudied source of phenotypic variation. Figure 1 provides a set of hypothetical...