We do not have ANY photos of this Magazine!
If you have an appropriate photo, please share it with HelpMeFind - see the UPLOAD PHOTO button on the Photos tab.
Please do not upload someone else's photos without their permission. Thanks!
Magazine.
Genus Rosa (Rosaceae) has a base chromosome number of x = 7. Ploidy levels of wild species range from 2n=2x=14 to 2n=8x=56. In this paper, one decaploid, the highest naturally occurring ploidy ever reported in the genus, was detected in the karyological study of an endemic wild species, R. praelucens Byhouwer to Zhongdian Plateau, Yunnan, China. According to its karyomorphology, R. praelucens derived not from auto polyploidization directly but from inter-specific hybridization. Polyploidization associated with effect of high altitude environment and inter-species hybridization both might have played important roles in the origin of R. praelucens.
3 favorite votes.
Article in Caryologia vol. 63, no. 2, 162-167 (2010) by Hongying Jian, Hao Zhang, Kaixue Tang, Shufa Li, Qigang Wang, Ting Zhang, Xianqin Qiu and Huijun Yan.
