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Bulletin of Botanical Research ›› 2016, Vol. 36 ›› Issue (1): 43-51.doi: 10.7525/j.issn.1673-5102.2016.01.006

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Taxonomy Significance Based on Pollen Morphology Observation of 19 Species of Manglietia

SANG Zi-Yang1;ZHANG De-Chun1,2;WANG Yu-Bing2;MA Lü-Yi1*   

  1. 1.The Key Laboratory for Silviculture and Conservation of Ministry of Education,Beijing Forestry University,Beijing 100083;
    2.Biotechnology Research Center,China Three Gorges University,Yichang 443002
  • Online:2016-01-15 Published:2016-05-18

Abstract: We studied the pollen morphology of 19 species of Manglietia with scanning electron microscope(SEM), and measured the pollen size and densities of cavity and protuberance. The hierachical cluster analysis(HCA) was done based on the metrical data. Under SEM, all the pollens appear as boats, each pollen has a sprout channel whose length almost equal to the longer axis of pollen, the characters of pollen surfaces such as cavity and protuberance are steadily in same species, but there are some visible differences among pollen of different species. The result of HCA shows that the pollen morphology characteristics of the different species distributed in the same geographical region or similar areas have more similarities department, and there is a strong correlation between genetic branches and geographical distribution.

Key words: Manglietia, pollen morphology, taxonomy