Differentiation in fructification percentage between two morphs of Amomum tsaoko (Zingiberaceae)
| Autor: | Yao-Wen Yang, Ai-Rong Li, Zi-Gang Qian, Xiao-Li Liu, Kai-Yun Guan, Chun-Xia Pu |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Fructification Sexual differentiation biology media_common.quotation_subject Significant difference Outcrossing Plant Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Amomum tsaoko Inflorescence Botany Genetics Zingiberaceae Reproduction Agronomy and Crop Science 010606 plant biology & botany media_common |
| Zdroj: | Breeding Science. 66:391-395 |
| ISSN: | 1347-3735 1344-7610 |
| Popis: | Amomum tsaoko is a flexistylous ginger. Flexistyly is a unique floral mechanism promoting outcrossing, which is known only in some species of Zingiberaceae till date. This is a pioneer report on flexistyly in A. tsaoko from the aspect of fructification percentage to clarify its influence on reproduction. We observed in 2007 and 2008 that the fructification percentage of the anaflexistyled and the cataflexistyled inflorescence were 14.89 +/- 10.35% and 11.31 +/- 7.91% respectively, with significant difference (d.f. = 141.920, t = 2.518, P = 0.013 < 0.05). The greatly significant difference between 2007 and 2008 were present in both the flower number (d.f. = 93, t = -2.819, P = 0.006 < 0.01) and the fructification percentage (d.f. = 93, t = -2.894, P = 0.005 < 0.01) of the cataflexistylous inflorescence. Although the two morphs were similar in morphological characteristics, there was some gender differentiation between them, showing a possibility that the anaflexistylous morph might function more as females and the cataflexistylous morph more as males. Reproduction of the cataflexistylous morph was significantly sensitive to change of environmental factors, in contrast to the anaflexistylous morph, thus the yield varied between the abundant year (2008) and the off year (2007). |
| Databáze: | OpenAIRE |
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