''Pyrus'' × ''sinkangensis'', the Xinjiang pear, has been suspected to be of complex hybrid origin involving '' P. communis'' and Chinese white pears based on their morphological characteristics.

Cultivars A cultivar is a kind of cultivated plant that people have selected for desired traits and which retains those traits when propagated. Methods used to propagate cultivars include division, root and stem cuttings, offsets, grafting, tissue cult ...

of ''P.'' × ''sinkangensis'' vary considerably, combining characteristics of both ''P. communis'' and Chinese white pears. Generally, the fruit shape of this species is much similar to ''P. communis'', but with a long

pedicel Pedicle or pedicel may refer to: Human anatomy *Pedicle of vertebral arch, the segment between the transverse process and the vertebral body, and is often used as a radiographic marker and entry point in vertebroplasty and kyphoplasty procedures ...

. Some cultivars of ''P. × sinkiangensis'' bear fruits with a persistent calyx and strong aroma, needing ripening before being edible, which is similar to ''P. communis''. On the other hand, fruits of some cultivars are juicy and crisp and not needed for ripening, which is like Chinese white pear. New information from DNA-based markers indicates that ''P.'' × ''sinkiangensis'' usually produced complex

RAPD RAPD may refer to: * Relative afferent pupillary defect *Random amplification of polymorphic DNA Random amplified polymorphic DNA (RAPD), pronounced "rapid", is a type of polymerase chain reaction (PCR), but the segments of DNA that are amplified ...

profiles, at least ''P. communis'', '' P. armeniacifolia'' and Chinese white pears or sand pears have been involved in the origin of Xinjiang pears.Teng Y, Tanabe K, Tamura F and Itai . 2001. Genetic relationships of pear cultivars in Xinjiang, China as measured by RAPD markers. J. Hort. Sci. Biotech. 76:771-779.

References

sinkiangensis Flora of Xinjiang Hybrid fruit Interspecific plant hybrids {{pyrus-stub