Variety traits

Kiwifruit Ploidy

Actinidia chinensis Planch.

A genetic characteristic of Actinidia chinensis determined by a base haploid number of n=29, with diploid (2n=58) and tetraploid (2n=116) forms occurring.

In the reference 6 varieties crop Kiwifruit, where this is mentioned in the description.

The species Actinidia chinensis is characterized by a base haploid chromosome number of n=29. Both diploid and tetraploid individuals are found in natural populations of this species. Determining the ploidy level is primarily conducted using flow cytometry methods to assess nuclear DNA content or by chromosome counting, while morphometric methods, such as measuring stomatal cells, are considered less accurate.

Ploidy directly affects the breeding process by creating compatibility barriers during hybridization and influencing the fertility of hybrids. Artificial polyploidization is used to increase fruit size, although this can negatively impact market quality traits, such as flesh consistency and soluble solids content. Furthermore, the ploidy level is linked to the adaptability of populations to environmental conditions and may correlate with resistance to bacterial pathogens, including Pseudomonas syringae pv. actinidiae.

General information about the subject — on the page Ploidy.

Sources8

Varieties of Kiwifruit mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.