Linkage mapping in tetraploid willows: segregation of molecular markers and estimation of linkage phases support an allotetraploid structure for Salix alba (times) Salix fragilis interspecific hybrids

Article Abstract:

Research has been conducted on male and female willows. The authors discuss the construction of the linkage maps for male and female willows which is based on the two-way pseudotestcross strategy, and report the use of the single-dose amplified fragment length polymorphisms and the selective amplification of microsatellite polymorphic loci markers between parents in linkage analysis.

Italy, Belgium, Willows, Allopolyploid, Allopolyploidy

Genetic diversity and reproductive biology in ecotypes of the facultative apomict Hypercium perforatum L

Article Abstract:

The reproductive dynamics and the developmental events of apomixis in Hypercium perforatum, a species considered as a favorable model for apomixis research is presented. The mode of reproduction was investigated using flow cycometric seed screen analysis to reconstruct the patterns of seed formation and to infer the sources of genetic variation at the population level.

Analysis, Flow cytometry, Apomixis, Plant asexual reproduction, Genetic variation

Mapping viability loci using molecular markers

Article Abstract:

Research has been conducted on genetic mapping. The hypothesis that molecular markers are linked to viability loci which cause the deviation of the observed segregation ratios from Mendelian expectations has been tested, and the results are reported.

United States, Molecules