Natural Outcrossing in Grasspea

Natural Outcrossing in Watermelon - A Review

Inheritance and linkage of isozymes in grasspea

Introduction Although isozyme markers may not be abundant in a species, their codominant inheritance has made them useful in certain situations. In linkage mapping experiments, codominant markers are often preferred over dominant markers as they carry more information on the recombination fraction than dominant markers in the F2 segregating population . An inheritance study will provide allelic...

High Local Genetic Diversity and Low Outcrossing Rate in Caenorhabditis elegans Natural Populations

BACKGROUND Caenorhabditis elegans is a major model system in biology, yet very little is known about its biology outside the laboratory. In particular, its unusual mode of reproduction with self-fertile hermaphrodites and facultative males raises the question of its frequency of outcrossing in natural populations. RESULTS We describe the first analysis of C. elegans individuals sampled direct...

Local-Scale Patterns of Genetic Variability, Outcrossing, and Spatial Structure in Natural Stands of Arabidopsis thaliana

As Arabidopsis thaliana is increasingly employed in evolutionary and ecological studies, it is essential to understand patterns of natural genetic variation and the forces that shape them. Previous work focusing mostly on global and regional scales has demonstrated the importance of historical events such as long-distance migration and colonization. Far less is known about the role of contempor...

Sampling from Natural Populations with RNAi Reveals High Outcrossing and Population Structure in Caenorhabditis elegans

Despite a nearly worldwide distribution in nature, Caenorhabditis elegans exhibits low levels of genetic polymorphism, possibly as an indirect consequence of low levels of outcrossing. In the laboratory, Caenorhabditis elegans males are produced at low rates and are steadily eliminated from cultures, so that reproduction happens largely through self-fertilization in hermaphrodites. C. elegans i...