Chinese Bulletin of Botany ›› 2009, Vol. 44 ›› Issue (01): 96-102.

• 研究报告 • Previous Articles     Next Articles

Correlation and Path Analyses of Vindoline with Major Agronomic Traits in Catharanthus roseus

Xiaofen Sun1, 2, Yu Chen1, Junsong Pan1, Yuliang Wang1, Kexing Sun1, Kexuan Tang1*, Run Cai1*   

  1. 1Plant Biotechnology Research Center, Department of Plant Sciences, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2008-04-22 Revised:2008-06-05 Online:2009-01-01 Published:2009-01-01
  • Contact: Kexuan Tang1*, Run Cai1*

Abstract: Vindoline content in 23 Catharanthus roseus varieties currently cultivated all over the world was measured by reverse-phase high performance liquid chromatography (RP-HPLC). Vindoline content was compared by correlation and path coefficients with 12 major gronomic traits of the varieties. Vindoline content showed a positive correlation with leaf width, plant height, whole-plant leaf weight, 100-leaf weight, petal diameter and leaf length; the positive correlation was significant for first lateral branch number and stem diameter (P<0.05) and notable for internodal distance. Vindoline content showed a negative correlation with ratio of leaf length to width, seed pod length and seed number per pod. Path analysis showed internodal distance,first lateral branch number and whole-plant leaf weight with a significant positive effect on vindoline content (P<0.05), with path coefficients of 0.959, 0.716 and 0.431 respectively, which suggests that internodal distance, first lateral branch number and whole-plant leaf weight are the important factors in breeding C. roseus with high vindoline content.