摘要
【目的】揭示9份野豌豆属(Vicia)牧草花粉粒的形态特征,为该属植物的分类提供重要的形态学依据。【方法】采用扫描电镜对9份野豌豆属牧草的花粉粒形态进行观察。【结果】9份野豌豆属牧草的花粉均为单粒花粉,形状均为扁球形,赤道面观均为扁圆形,极面观呈三裂圆形或三角形,萌发孔均为三孔萌发沟,外壁纹饰为网状纹饰或脑状纹饰。9份野豌豆属牧草花粉粒形态性状的变异系数为0.00%~34.40%,遗传多样性指数为0.00~1.68,形态特征具有丰富的遗传多态性。【结论】根据花粉粒形态推测:野豌豆、兰花苕子和箭筈豌豆进化程度较原始,而四籽野豌豆、光叶紫花苕和毛叶苕子进化程度较高。
[Purpose]To reveal the morphological characteristics of pollen grains in nine Vicia forages,providing an important morphological basis for the classification of plants in this genus.[Methods]The morphology of pollen grains from nine Vicia forages was observed by scanning electron microscope.[Results]All the pollens from nine Vicia forages were single-grained,all of which were flat spherical in shape,the equatorial view was oblateness,the polar view was three-lobed circles or triangles,the germination pores were all three-channel,and the ornamentation was reticulate or brain-like.The variation coefficient of pollen grains morphological characteristics of the nine Vicia forages ranged from 0.00%to 34.40%,and the genetic diversity index ranged from 0.00 to 1.68.These morphological characteristics displayed rich genetic polymorphism.[Conclusion]Based on pollen grain morphology,the evolution of V.multijuga(Boiss.)Rech.f.,V.cracca L.and V.sativa L.is relatively primitive,while the evolution of V.tetrasperma(L.)Schreb.,V.villosa Roth and V.villosa Roth(hairy vetch)was relatively advanced.
作者
刘爱林
侯燕红
杨文
何承刚
黄鹤平
姜华
LIU Ailin;HOU Yanhong;YANG Wen;HE Chenggang;HUANG Heping;JIANG Hua(Faculty of Animal Science and Technology,Yunnan Agricultural University,Kunming 650201,China;Forage and Feed Station of Yunnan Province,Kunming 650224,China)
出处
《云南农业大学学报（自然科学版）》
CAS
CSCD
北大核心
2024年第4期141-148,共8页
Journal of Yunnan Agricultural University:Natural Science
基金
“兴滇英才支持计划”产业创新人才项目(XDYC-CYCX-2022-0036)
洱源县饲草产业科技特派团(202304BI090008)
云南省基础研究重大项目(202401BC07001)
云南省作物野生近缘种现代组学重点实验室开放课题(CWR-2024-01)。
关键词
野豌豆属
花粉粒形态
扫描电镜
Vicia
morphology of pollen grains
scanning electron microscopy
