Chin J Plan Ecolo ›› 2009, Vol. 33 ›› Issue (5): 911-918.doi: 10.3773/j.issn.1005-264x.2009.05.010

• Research Articles • Previous Articles     Next Articles


MA Wen-Juan1,2;ZHANG Feng-Ping1,2;PENG Yan-Qiong1;YANG Da-Rong1*   

  1. 1Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Online:2009-09-30 Published:2009-09-30
  • Contact: YANG Da-Rong

Abstract: Aims Figs and fig wasps are classical materials for research on plant-animal coevolution. There are both monoecious and dioecious figs. The evolutionary mechanism of Ficus has attracted many biologists. Most recently, Chen (2005) deduced that Ficus evolved from monoecious to dioecious, based on comparison of style distribution, pollinators’ ovipositor length, and reproduction success in monoecious and dioecious figs. Our objective was to test the duduction and further study Ficus evolution.
Methods We collected figs in the female floral phase and measured the length of styles and pollinators’ ovipositors in both monoecious figs and dioecious figs using dissecting microscopy. Figs in the male florets phase were also collected. We counted (i) seeds, galls, bladders, and unparasitized ovaries for monoecious figs, (ii) galls, bladders, and unparasitized ovaries for dioecious male figs, and (iii) seeds and unparasitized ovaries for female figs.
Important findings Ovipositor length was significantly longer, and the coefficient of variation (CV) of style length was higher in the two monoecious figs than in dioecious figs. Style length had unimodal distributions in the two monoecious figs, and their CVs were higher than pollinators’ ovipositor length CVs. The style length had biomodal distributions in the two dioecious fig species, and the CVs of style length were also higher than those of the ovipositor length. Monoecious figs were more effective in producing galls, based on the proportions of ovaries that pollinators’ ovipositors could reach, but dioecious figs were more effective in producing seeds. Therefore, the deduction of Chen (2005) is not completely correct, and additional research is needed to resolve the Ficus evolution question.

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[1] . [J]. Chin Bull Bot, 1994, 11(专辑): 19 .
[2] Xiao Xiao and Cheng Zhen-qi. Chloroplast 4.5 S ribosomol DNA. II Gene and Origin[J]. Chin Bull Bot, 1985, 3(06): 7 -9 .
[3] CAO Cui-LingLI Sheng-Xiu. Effect of Nitrogen Level on the Photosynthetic Rate, NR Activity and the Contents of Nucleic Acid of Wheat Leaf in the Stage of Reproduction[J]. Chin Bull Bot, 2003, 20(03): 319 -324 .
[4] SONG Li-Ying TAN Zheng GAO Feng DENG Shu-Yan. Advances in in vitro Culture of Cucurbitaceae in China[J]. Chin Bull Bot, 2004, 21(03): 360 -366 .
[5] . [J]. Chin Bull Bot, 1994, 11(专辑): 76 .
[6] LI Jun-De YANG Jian WANG Yu-Fei. Aquatic Plants in the Miocene Shanwang Flora[J]. Chin Bull Bot, 2000, 17(专辑): 261 .
[7] XU Jing-Xian WANG Yu-Fei YANG Jian PU Guang-Rong ZHANG Cui-Fen. Advances in the Research of Tertiary Flora and Climate in Yunnan[J]. Chin Bull Bot, 2000, 17(专辑): 84 -94 .
[8] Sun Zhen-xiao Xia Guang-min Chen Hui-min. Karyotype Analysis of Psathyrostachys juncea[J]. Chin Bull Bot, 1995, 12(01): 56 .
[9] . [J]. Chin Bull Bot, 1994, 11(专辑): 8 -9 .
[10] Yunpu Zheng;Jiancheng Zhao * ;Bingchang Zhang;Lin Li;Yuanming Zhang . Advances on Ecological Studies of Algae and Mosses in Biological Soil Crust[J]. Chin Bull Bot, 2009, 44(03): 371 -378 .