Pollen Morphology in Sorbus L. (Rosaceae) and Its Taxonomic Implications.

ABSTRACT: The genus Sorbus L. in the Rosaceae family is taxonomically challenging due to its morphological variation, polyploidy, and interspecific hybridization. In this study, we used scanning electron microscopy (SEM) to observe the pollen morphology of eighty species, representing six subgenera, in order to assess the differences within the genus Sorbus and its pollen characteristics. We conducted a cluster analysis on three qualitative and four quantitative characteristics. The results demonstrated that the pollen grains of the studied Sorbus species are isopolar and tricolporate. We identified five types of pollen shapes: suboblate, spheroidal, subprolate, prolate, and perprolate. The pollen ornamentation of the investigated species could be classified into five types: str

SUBMITTER: Li M 

PROVIDER: S-EPMC10534392 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature