Identification of chromosome ploidy and karyotype analysis of cherries (<i>Prunus pseudocerasus</i> Lindl.) in Guizhou.

ABSTRACT: The present study aimed to characterize the chromosome features of cherry (Prunus pseudocerasus Lindl.) germplasm in Guizhou Province, China, in order to facilitate the selection and breeding programs of this economically and ornamentally valuable species. The stem tip chromosome preparation technique was employed for ploidy identification and karyotype analysis, and the results were further validated by flow cytometry. The findings revealed that the 28 cherry accessions from Guizhou province exhibited a chromosomal base of x = 8, comprising 19 tetraploid and nine hexaploid individuals. Karyotype analysis showed two chromosome types, "m" and "sm," with the longest chromosome/shortest chromosome (Lc/Sc) ranging from 1.6 to 2.65, the mean arm ratio (MAR) varying from 1.15 to 1.56, and

SUBMITTER: Chen N 

PROVIDER: S-EPMC11657202 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature