Crop Sci 10:184–187īurson BL, Bennett HW (1971) Chromosome numbers, microsporogenesis, and mode of reproduction of seven Paspalum species. Crop Sci 34:1347–1351īurson BL, Bennett HW (1970) Cytology, method of reproduction, and fertility of Brunswickgrass, Paspalum nicorae Parodi. Crop Sci 6:52–54īurson BL (1997) Apomixis and sexuality in some Paspalum species. Apomixis in these five species may be acting as a successful method for the dispersion of better adapted genotypes.īennett HW, Bashaw EC (1966) Interspecific hybridization with Paspalum spp. This study represents one of the first reports of genetic diversity in natural populations of several Paspalum agamic complexes. buckleyanum consist of a single AFLP genotype and each population represents a particular genotype suggesting that populations arose from independent polyploidization events. Here, the main source of variability may be the residual sexuality, which continues generating new genotypic combinations. nicorae) or of one dominant genotype with a few deviated genotypes ( P. The pure populations of tetraploids consist of either multiple genotypes ( P. This may be mainly due to the reproductive system of diploid members and the gene flow from diploids to polyploids. rufum, where all individuals represent different genotypes.
The AFLP data revealed maximal genotypic diversity and significant levels of genetic diversity in diploid and mixed diploid–tetraploid populations of P. A total of 13 populations were analyzed using amplified fragment length polymorphism (AFLP). The aim of this work was to evaluate the genetic diversity of several natural populations belonging to five species of Paspalum. However, not much is known about the genetic structure of natural populations of the apomictic species of Paspalum. Paspalum has many multiploid species displaying a wide range of ploidy levels and reproductive systems including apomixis.
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