Although hybrid crop varieties are among the most popular agricultural innovations, the
rationale for hybrid crop breeding is sometimes misunderstood. Hybrid breeding is slower …

Heterosis, also known as hybrid vigour, is widespread in plants and animals, but the
molecular bases for this phenomenon remain elusive. Recent studies in hybrids and …

Hybrid maize displays superior heterosis and contributes over 30% of total worldwide cereal
production. However, the molecular mechanisms of heterosis remain obscure. Here we …

Heterosis, or hybrid vigor, is exploited by breeders to produce elite high-yielding crop lines,
but beneficial phenotypes are lost in subsequent generations owing to genetic segregation …

Polyploids—organisms that have multiple sets of chromosomes—are common in certain
plant and animal taxa, and can be surprisingly stable. The evidence that has emerged from …

Hybrids such as maize (Zea mays) or domestic dog (Canis lupus familiaris) grow bigger and
stronger than their parents. This is also true for allopolyploids such as wheat (Triticum spp.) …

Polyploidy, or whole-genome duplication (WGD), is an important genomic feature for all
eukaryotes, especially many plants and some animals. The common occurrence of …

Intercrossing different varieties of plants frequently produces hybrid offspring with superior
vigor and increased yields, in a poorly understood phenomenon known as heterosis,. One …

The behavior of transcriptomes and epigenomes in hybrids of heterotic parents is of
fundamental interest. Here, we report highly integrated maps of the epigenome, mRNA, and …

Segregating hybrids and stable allopolyploids display morphological vigour,,, and
Arabidopsis allotetraploids are larger than the parents Arabidopsis thaliana and Arabidopsis …