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Plant Diversity ›› 2015, Vol. 37 ›› Issue (06): 704-712.DOI: 10.7677/ynzwyj201515043

• 研究论文 • 上一篇    下一篇

井冈寒竹复合体 (竹亚科) 的表型变异及其分类学意义

 龙春玲1、2, 孔亭1、2, 李玮剑1、2, 杨光耀1、2, 张文根1、2   

  1. 1 江西省竹子种质资源与利用重点实验室,南昌330045;2 江西农业大学,南昌330045
  • 收稿日期:2015-03-13 出版日期:2015-11-25 发布日期:2015-05-19
  • 基金资助:

    国家自然科学基金项目 (31260043);国家科技支撑计划课题 (2012BAC11B02)

Phenotypic Variation of Gelidocalamus stellatus Wen Complex (Bambusoideae)

 LONG  Chun-Ling-1、2, KONG  Ting-1、2, LI  Wei-Jian-1、2, YANG  Guang-Yao-1、2, ZHANG  Wen-Gen-1、2   

  1. 1 JiangXi Agricultural University, Nanchang 330045, China; 2 Jiangxi Provincial Key Laboratory for
    Bamboo Germplasm Resources and Utilization, Nanchang 330045, China
  • Received:2015-03-13 Online:2015-11-25 Published:2015-05-19
  • Supported by:

    国家自然科学基金项目 (31260043);国家科技支撑计划课题 (2012BAC11B02)


井冈寒竹复合体 (Gelidocalamus stellatus Wen complex) 包括井冈寒竹 (Gelidocalamus stellatus)、蒙竹 (Gauritus)、小蒙竹 (Gmonophyllus)、多叶井冈寒竹 (Gmultifolius) 和武功山短枝竹 (Gwugongshanensis),其分类处理尚存在争议。通过对该复合体13个自然居群的13个主要分类性状进行测量、统计和分析,结果表明:1) 13个性状在居群内和居群间均存在不同程度的变异,其中枝下高变异幅度最大 (276%),叶长宽比变异最小 (64%);2) 胸径、节数、枝下高、叶长、叶宽、叶长宽比和枝盘数等7个性状在模式产地井冈山4个居群间较为稳定,但可以将复合体居群进行有效区分,可能具有一定的分类学价值;3) 九凝山居群 (JYM) 和小龙归 (XLG) 居群表型与井冈山居群 (JGM) 的最为相近,连坪乡 (LPC) 和黄河村居群 (HHV) 叶片性状以及武功山居群 (WGM) 秆的特性与其它居群有显著的差异,杆子坑 (GZD) 和溶家洞 (RJC) 居群分枝数明显多于其它居群。结合秆箨和叶下表皮微形态特征,我们对该复合体不同居群的分类处理进行了讨论,不支持多叶井冈寒竹新种的成立,支持将蒙竹废除;建议将小蒙竹和武功山短枝竹作为井冈寒竹种下单位处理。

关键词: 竹亚科, 复合体, 表型, 井冈寒竹


Gelidocalamus stellatus Wen complex includes Gelidocalamus stellatus, Gauritus, Gmonophyllus, Gmultifolius and Gwugongshanensis, indicating the existence of some taxonomic disputes within this taxon. Based on 13 main phenotypic traits, in this paper, 13 populations of the complex are investigated and the results show that 1) All 13 characters have some changes between and within populations, of which the maximum is the height under branch with 276%, while the minimum is the ratio of length and width with 64%; 2) In the JingGang Mountain population (JGM), seven characters, such as the diameter at breast height, the node number, the height under branch, the leaf length, the leaf width, the ratio of leaf length and width, and numbers of each branch, are relatively stable among 4 different populations, and populations of Gstellatus Wen complex can be distinguished effectively by that seven characters, so it maybe have some worth for the clarification of the complex; 3) Besides that JiuYi Mountain population (JYM) and XiaoLongGui population (XLG) share the same or similar traits with that of JGM, there have many remarkable differences between other populations, such the leaf in LianPing Country population (LPC) and HuangHe Village population (HHV), the culm in WuGong Mountain population (WGM) and the numbers of each branch in GanZi Depression population (GZD) and RongJia Cavity population (RJC). With the observation of the culmsheath and the abaxial epidermis of leaves, the taxonomic position of some populations is discussed. Our results still indicate that Gmultifolius (HuangHe Village population) and Gauritus may be null and void. Furthermore, we proposal Gwugongshanensis (WuGong Mountain population) and Gmonophyllus (JiuYi Mountain population) should be as a taxon under Gstellatus.

Key words: Bambusoideae, Complex, Phenotypic, Gelidocalamus stellatus Wen