Hybridization is a key mechanism involved in lineage diversification and speciation,
especially in ecosystems that experienced repeated environmental oscillations. Recently …

Background Karyotype, as a basic characteristic of species, provides valuable information
for fundamental theoretical research and germplasm resource innovation. However …

Specific ecological conditions in the high mountain environment exert a selective pressure
that often leads to convergent trait evolution. Reticulations induced by incomplete lineage …

Karyotype characteristics can provide valuable information on genome evolution and
speciation, in particular in taxa with varying basic chromosome numbers and ploidy levels …

Abstract Background and Aims The entangled relationship of chromosome number and
genome size with species distribution has been the subject of study for almost a century, but …

Although Crepis was the first model plant group in which chromosomal changes were
considered to play an important role in speciation, their chromosome structure and evolution …

Pitaya (Hylocereus undatus; 2n= 22) is an important fruit crop from the Cactaceae family,
originally domesticated in Mexico and the USA, and is now widely cultivated for its nutritional …

The asymmetry indexes have helped cytotaxonomists to interpret and classify plant
karyotypes for species delimitation efforts. However, there is no consensus about the best …

Angraecoid orchids present a remarkable diversity of chromosome numbers, which makes
them a highly suitable system for exploring the impact of karyotypic changes on …

Orchidaceae is a widely distributed plant family with very diverse vegetative and floral
morphology, and such variability is also reflected in their karyotypes. However, since only a …