Plant Diversity ›› 2013, Vol. 35 ›› Issue (2): 119-127.doi: 10.7677/ynzwyj201312118

• Articles • Previous Articles     Next Articles

Diversity of Leaf Variegation in Chinese Begonias

 CUI  Wei-Hua-1、3, GUAN  Kai-Yun-1、2   

  1. 1 Key Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences,
    Kunming 650201, China; 2 Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences,
    Urumchi 830011, China; 3 University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-09-21 Online:2013-03-25 Published:2012-11-12

Abstract:

Variegated leaf is applied to the leaf which is partly or wholly colored in other than ordinary green as their ordinary feature. Investigations were conducted to understand the status of variegated Begonia species of China. Eighty four species among 203 taxa are found to be variegated. Colors of variegation are usually light green, silvery green, silvery white and white. From the perspective of horticulture, the variegated species of Chinese begonias were divided into different types according to the variegation features. Positions of variegated parts are the most important character used to divide the variegation types. Vein type and nonvein type are the two main types. The vein type(Ⅰ) was subdivided into three types: vein part type (ⅠA), intervein part type (ⅠB), middle vein and intervein part type (ⅠC). While the nonvein type (Ⅱ) was subdivided into six types, i.e. ringlike type (ⅡA), palmate type (ⅡB), subentire type (ⅡC), entire type (ⅡD), mixed type (ⅡE), and irregular type (ⅡF). The common variegation types among Chinese begonias are ⅠA1, ⅠA2, ⅠB1, ⅠB2 and ⅡA. Finally the mechanism and the hereditary property lies in variegation of Chinese begonias were discussed.

Key words: Begonia, Leaf variegation, Diversity of leaf variegation, Classification of leaf variegation, Hereditary property

CLC Number: 

  • Q 944