Epistatic interactions between genes are a major factor in evolution. Hybrid necrosis is an
example of a deleterious phenotype caused by epistatic interactions that is observed in many …

Ecological factors, hybrid sterility and differences in ploidy levels are well known for
contributing to gene-flow barriers in plants. Another common postzygotic incompatibility, hybrid …

Sex, as well as meiotic recombination between homologous chromosomes, is nearly
ubiquitous among eukaryotes. In those species that use it, recombination is important for …

Leaves and floral organs are polarized along their adaxial–abaxial (dorsal–ventral) axis. In
Arabidopsis, this difference is particularly obvious in the first two rosette leaves, which …

The most critical step in maize (Zea mays ssp. mays) domestication was the liberation of the
kernel from the hardened, protective casing that envelops the kernel in the maize progenitor, …

The patterned expression of floral homeotic genes inArabidopsis depends on the earlier
action of meristem-identity genes such as LEAFY, which encodes a transcription factor that …

Reduced representation genome‐sequencing approaches based on restriction digestion are
enabling large‐scale marker generation and facilitating genomic studies in a wide range of …

The rediscovery of Mendel’s work showing that the heredity of phenotypes is controlled by
discrete genes was followed by the reconciliation of Mendelian genetics with evolution by …

The homologous transcription factors FLORICAULA of Antirrhinum and LEAFY of Arabidopsis
share conserved roles in flower meristem identity and floral patterning. While roles for …

Intraspecific genetic incompatibilities prevent the assembly of specific alleles into single
genotypes and influence genome- and species-wide patterns of sequence variation. A common …