Characteristics of Phenotypic Variation of Malus Pollen at Infrageneric Scale.

ABSTRACT: Pollen carries extensive genetic information, which may provide clues regarding the kinship of Malus, whose genetic relationships are complex. In this study, the phenotypic variation of pollen from 107 Malus taxa was investigated using combined methods of intraspecific/interspecific uniformity testing, cluster analysis, and Pearson correlation analysis. The family aggregation distributions in Malus sections, species, and cultivars were analyzed to infer their pedigree relationships. The results showed that (1) compared with pollen size and morphology, aberrant pollen rate and ornamentation were highly interspecifically differentiated, but ornamentation was also intraspecifically unstable, especially perforation densities (c.v.¯ > 15%). (2) The pollen alteration directi

SUBMITTER: Fan J 

PROVIDER: S-EPMC11397718 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature