Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2022, Vol. 12 ›› Issue (8): 55-61.doi: 10.11923/j.issn.2095-4050.cjas2021-0077

Special Issue: 生物技术 园艺

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Polyploidy Induction by Colchicine in Forest Trees: Research Progress

LI Yuling1(), YAN Shaobo2, MAO Xiuhong1(), WANG Cuiyan3, WANG Jinna4, LIU Cuilan1, ZHANG Qian1, QIAO Yanhui1   

  1. 1Shandong Academy of Forestry, Jinan 250014, Shandong, China
    2Ludan (Shandong) Urban and Rural Cold Chain Industry and Finance Co., Ltd., Jinan 250010, Shandong, China
    3Lancun Sub-district Office, Jimo District, Qingdao 266231, Shandong, China
    4Longkou City Garden construction and maintenance center, Yantai 265701, Shandong, China
  • Received:2021-04-27 Revised:2021-08-11 Online:2022-08-20 Published:2022-09-22
  • Contact: MAO Xiuhong E-mail:liyuling500@163.com;xiuhongmao@163.com

Abstract:

Polyploid breeding is an important way to create and select new varieties of plants. Colchicine is the most widely used and effective reagent for plant polyploidy induction at present. In this paper, the research progress of colchicine in forest polyploidy induction in recent years is reviewed, and the influencing factors such as colchicine concentration, induction time, treatment methods and the methods for identifying polyploidy are summarized. It is pointed out that there are some problems in forest polyploidy, such as tedious and slow separation and purification of chimeras, urgent development requirement of new inducers, long evaluation period of forest polyploidy, and insufficient research on molecular mechanism of autopolyploid. Then, corresponding solutions and suggestions are given. The purpose of this review is to provide theoretical reference for forest polyploidy breeding.

Key words: forest tree, polyploidy, colchicine, research progress, existing problems

CLC Number: