Comparative genomics, the study of the similarities and differences in structure and function
of hereditary information across taxa, uses molecular tools to investigate many notions that …

Several fertile diploid plant species have been shown to be derived from hybridization
between species with strong chromosomal sterility barriers, yet little is known about the …

High rates of hybridization and introgression have been reported between the cultivated
sunflower and its wild progenitor (both Helianthus annuus), raising concerns that neutral or …

Genome sequence data contain abundant information about genealogical history, but
methods for extracting and interpreting this information are not yet fully developed. We …

While hybridization has recently received a resurgence of attention from systematists and
evolutionary biologists, there remains a dearth of case studies on ancient, diversified hybrid …

Interest in the level and organization of nucleotide diversity in domesticated plant lineages
has recently been motivated by the potential for using association-based mapping …

In addition to the classic allopatric model of speciation in which two lineages diverge
through time, a population may “bud off” from an ancestral population and become adapted …

Isolated plant populations face a series of demographic and genetic challenges. They
potentially may suffer from a loss of allelic and genotypic diversity or from inbreeding …

Highlights•Most studies of polyploidization and diversification use indirect methods as
evidence for polyploidy, and often cannot capture a reticulate history.•Approaches that use …

This paper is an overview of the diverse, predominantly molecular techniques, used in
assessing plant genetic diversity. In recent years, there has been a significant increase in …