Sprekelia formosissima (L.) Herbert is a bulbous ornamental species of the Amaryllidaceae family, distributed from northern Mexico to Guatemala. Different reports on cytogenetic research on this species show differences in chromosome numbers (2n = 60, 120, 150, 180) with a basic number of x = 30. Since the chromosome number of plants can provide useful information for various fields of research including karyotaxonomy, genetics, and cytogenetics, it is important to determine the chromosome number for this species. Bulbs of S. formosissima were collected in three different locations in the state of Jalisco, Mexico. Meristematic root cells were analyzed cytogenetically using a modified steam-drop method. The three populations showed different chromosome numbers and ploidy levels, 2n = 2x = 60, 2n = 4x = 120, and 2n = 5x = 150. The ploidy level was compared with morphological traits showing higher values related to higher ploidy levels. The populations analyzed correspond to new polyploid cytotypes of S. formosissima.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.