J Syst Evol ›› 2008, Vol. 46 ›› Issue (5): 676-681.doi: 10.3724/SP.J.1002.2008.07104

• Research Articles • Previous Articles     Next Articles

Systematic position of Reynoutria and Polygonum sibiricum inferred from sequences of chloroplast trnL-F and matK

Wen-Guang YU1,Shou-Jin FAN2,Chong-Mei XU3,Li-Tao ZHU2,Yuan-Tong HOU4,Fu-Yu LIN5,Fa-Zeng LI2   

  1. 1. Key Laboratory of Stress Plant Research, College of Life Sciences, Shandong Normal University, Jinan 250014, China;Shandong Shengli Co., LTD, Jinan 250101, China
    2. Key Laboratory of Stress Plant Research, College of Life Sciences, Shandong Normal University, Jinan 250014, China
    3. Key Laboratory of Stress Plant Research, College of Life Sciences, Shandong Normal University, Jinan 250014, China;Weifang Medical University, Weifang 261042, China
    4. College of Life Sciences, Qufu Normal University, Qufu 273165, China
    5. Jinan No. 3 Vocational School, Jinan 250001, China
  • Received:2007-08-03 Online:2007-11-23 Published:2008-09-18

Abstract: The sequences of chloroplast trnL-F (including 19 species and 1 varieties) and matK (including 16 species and 1 varieties) regions of 4 genera from Polygonaceae were compared and analyzed to examine the systematic position of Reynoutria Houtt. and Polygonum sibiricum Laxm. The genus Rheum L. from subfamily Rumicoideae was designated as the outgroup. From the two strict consensus trees it was inferred that: (1) the genus Reynoutria was a member of the genus Fallopia with high bootstrap support; (2) Polygonum sibiricum Laxm. was separated from Polygonum and adjacent to genus Fallopia, so this species should be raised to the genus rank and can be called Knorringia sibirica (Laxm.) Tzvel. Moreover, the boundary of the two genera was defined in this article.

Key words: matK sequences, phylogenetics, Polygonum sibiricum, Reynoutria Houtt., trnL-Fsequences

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