干旱区生态环境知识资源中心(Arid): Protogyny and delayed autonomous self-pollination in the desert herb Zygophyllum macropterum (Zygophyllaceae)

Arid

	Protogyny and delayed autonomous self-pollination in the desert herb Zygophyllum macropterum (Zygophyllaceae)
	Mamut Jannathan; Li Bing; Tan Dunyan
来源期刊	Journal of Systematics and Evolution
ISSN	1674-4918
出版年	2014
卷号	52 期号:1 页码:75-83
英文摘要	Protogyny and delayed selfing are two mechanisms in facilitating outcrossing and increasing female and male function in self-compatible plant species. However, both mechanisms are rarely reported within a species. Here, we investigated pistil and stamen development, breeding system, and pollination biology of the desert herb Zygophyllum macropterum C. A. Mey. by use of field observations and manipulation experiments. Our primary aim was to assess whether protogyny and delayed autonomous self-pollination occurred in this species. Zygophyllum macropterum is a spring flowering species with a floral longevity of approximately 3 days, including the female stage and the bisexual stage. Movement herkogamy occurred during both stages. The stigma was receptive when it was exposed from the corolla. The time of first anther dehiscence was approximately 12 h after stigma exposure. These results indicated that Z. macropterum is protogynous. Different pollination treatments showed that this species is self-compatible and can self-pollinate autonomously. Time of first dehiscence of anther overtopping the stigma was approximately 16 h after stigma exposure, suggesting that autonomous self-pollination can occur in middle-late anthesis, and thus can be defined as delayed autonomous self-pollination. Anthophoraplumipes Pallas. was the only pollinator of Z. macropterum. The unfavorable spring desert environment and the small corolla mouth diameter at the female stage would limit pollinator activity and thus lead to failure of outcrossing and occurrence of delayed self-pollination. Therefore, both protogyny and delayed selfing play an important role in enhancing the opportunity for outcrossing and reproductive assurance of Z. macropterum in the spring desert environment.
英文关键词	delayed autonomous self-pollination movement herkogamy outcrossing protogyny reproductive assurance Zygophyllum macropterum
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:5037628
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335302
作者单位	Mamut Jannathan, College of Grassland and Environment Sciences, Xinjiang Agricultural University, Xinjiang Key Laboratory of Grassland Resources and Ecology;;Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and Ecology, Urumqi, Xinjiang 830052, China.; Li Bing, College of Grassland and Environment Sciences, Xinjiang Agricultural University, Xinjiang Key Laboratory of Grassland Resources and Ecology;;Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and Ecology, Urumqi, Xinjiang 830052, China.; Tan Dunyan, College of Grassland and Environment Sciences, Xinjiang Agricultural University, Xinjiang Key Laboratory of Grassland Resources and Ecology;;Ministry of Education Key Laboratory for Western Arid Region Grassland Resources and Ecology, Urumqi, Xinjiang 830052, China.
推荐引用方式 GB/T 7714	Mamut Jannathan,Li Bing,Tan Dunyan. Protogyny and delayed autonomous self-pollination in the desert herb Zygophyllum macropterum (Zygophyllaceae)[J],2014,52(1):75-83.
APA	Mamut Jannathan,Li Bing,&Tan Dunyan.(2014).Protogyny and delayed autonomous self-pollination in the desert herb Zygophyllum macropterum (Zygophyllaceae).Journal of Systematics and Evolution,52(1),75-83.
MLA	Mamut Jannathan,et al."Protogyny and delayed autonomous self-pollination in the desert herb Zygophyllum macropterum (Zygophyllaceae)".Journal of Systematics and Evolution 52.1(2014):75-83.