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当前位置: 首页 > 文章 > 鸢尾属12种(变种)植物花粉形态及其系统学意义 园艺学报 2010,37 (7) 1175-1182
Position: Home > Articles > Pollen Morphology of 12 Species of Iris L.and Its Systematic Significations Acta Horticulturae Sinica 2010,37 (7) 1175-1182

鸢尾属12种(变种)植物花粉形态及其系统学意义

作  者：
余小芳;张海琴;何雪梅;谢全;周永红
单  位：
四川农业大学小麦研究所
关键词：
鸢尾属;花粉;亲缘关系;系统演化
摘  要：
对鸢尾属12份材料的花粉形态进行了扫描电子显微镜观察。结果显示:(1)白花马蔺和马蔺花粉大小相似,形状、萌发孔、外壁纹饰和网脊形态相同,网脊宽度不同;(2)四川鸢尾、薄叶鸢尾和锐果鸢尾的花粉形状、外壁纹饰和网脊形态相同,均无明显萌发孔,锐果鸢尾花粉较小,表明这3个物种的亲缘关系较近;(3)蝴蝶花和扁竹兰花粉大小基本相同,前者形状为扁球形,后者为近球形;萌发器官、表面纹饰和网脊形态相同,网眼内无颗粒,表明这两物种亲缘关系较近;(4)扇形鸢尾与蝴蝶花和扁竹兰二者相比,在花粉粒大小,表面纹饰均上均有较大差异,表明扇形鸢尾与蝴蝶花和扁竹兰的亲缘关系较远。讨论了鸢尾属5个亚属的花粉形态特征及演化趋势。
译  名：
Pollen Morphology of 12 Species of Iris L.and Its Systematic Significations
作  者：
YU Xiao-fang1,2,ZHANG Hai-qin1,3,HE Xue-mei1,XIE Quan1,and ZHOU Yong-hong1,3,*(1Triticeae Research Institute,Wenjiang,Sichuan 611130,China;2Landscape Research Institute,Sichuan Agricultural University,Wenjiang,Sichuan 611130,China;3Key Laboratory of Crop Genetic Resources and Improvement,Ya'an,Sichuan 625014,China)
关键词：
Iris;pollen morphology;relationship;systematic signification
摘  要：
Pollen morphology of 12 species in Iris was investigated under scanning electron microscope in this study.The results showed that:(1)Except the width of spine,the shape and size of pollen grains,shape of aperture,extine sculpture of I.lactea and I.lactea var.chinensis were similar;(2) The shape of pollen grains,extine sculpture and width of spine of I.leptophylla,I.sichuanensis and I.goniocarpa were highly approximate and no aperture was found among the three species.The pollen grain of I.goniocarpa was smaller than those of I.leptophylla and I.sichuanensis;(3)Pollen of I.japonica and I.confusa had similar size and shape,and no grains existed in the meshes of these two species.The shape of pollen grains in I.japonica was suboblate while that in I.confusa was subspheroidal;(4)I.wattii was distinctly different from I.japonica and I.confusa in pollen size and exine ornamentation,suggesting that I.wattii had relatively distant relationship with I.japonica and I.confusa.

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