In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for Amaranthus hypochondriacus Linnaeus, 1753, Amaranthus mantegazzianus Passer, 1864, and Amaranthus caudatus Linnaeus, 1753. The distribution and variability of constitutive heterochromatin were detailed using DAPI-CMA3 banding technique. The position of the nucleolus orga...

Interspecific gene flow is pervasive throughout the tree of life. Although detecting gene flow between populations has been facilitated by new analytical approaches, determining the timing and geography of hybridization has remained difficult, particularly for historical gene flow. A geographically explicit phylogenetic approach is needed to determine the overlap of ancestral populations. In th...

The Yucatan Peninsula, located in southern Mexico, is a central honey-producing region with extraordinary biodiversity of melliferous plants. Approximately 900 plant species have been described as being source nectar and pollen for bees other pollinators. They provide ecosystem services that help to keep high mitigate the effects climate change. This study aimed reveal diversity content honey t...

Abstract Background Amaranthus spinosus is a medicinal plant used in traditional medicine to treat several diseases including diabetes and its complications. The aim of this study was prove the safety animal health. Methods dry extract obtained following hydroethanolic extraction A. roots. cytotoxicity evaluated vitro by incubating Artemia salina larvae with for 24 h. In vivo toxicity assessed ...