干旱区生态环境知识资源中心(Arid): A combination of dichogamy and herkogamy mediates reproductive success in the desert shrub Zygophyllum fabago

Arid

DOI	10.1016/j.jaridenv.2020.104279
	A combination of dichogamy and herkogamy mediates reproductive success in the desert shrub Zygophyllum fabago
	Naghiloo, Somayeh; Classen-Bockhoff, Regine
通讯作者	Naghiloo, S
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	182
英文摘要	Zygophyllum fabago is a species within the arid-adapted family Zygophyllaceae. The species is characterized by the co-occurrence of dichogamy and herkogamy. In order to understand the effect of these two complementary anti-selfing mechanisms in reproductive success, we conducted a detailed study of floral biology in Z. fabago. Our results indicated an incomplete separation of the female and male phases which is referred to as partial dichogamy. We found two floral morphs with distinct stigma position: the Central-morph (C-morph) and the Lateral-morph (L-morph). The stigma-stamen distance in the L-morph was significantly larger than in the C morph in early, mid, and late male stages indicating a high degree of herkogamy. The amount of pollen load of the L-morph stigma under control and selfing condition was significantly lower than of the C-morph, whereas we found no significance difference of pollen load between C and L-morphs under outcrossing condition. Partial protogyny provided opportunities for delayed selfing. On the other hand, the evolution of lateral herkogamy provided an effective mechanism to regulate the degree of delayed selfing in accordance with the outcrossing possibilities in the environment. A combination of dichogamy and herkogamy, therefore, contribute to reproductive success of the species in unpredictable desert environment.
英文关键词	Anther-stigma distance Dichogamy Herkogamy Pollen load Zygophyllum fabago
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568736600001
WOS关键词	SELF-POLLINATION ; EVOLUTION ; INTERFERENCE ; ANGIOSPERMS ; AVOIDANCE ; STIGMAS ; MENDOZA ; POLLEN ; HERB
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326215
作者单位	[Naghiloo, Somayeh] Univ Calgary, Dept Biol Sci, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada; [Classen-Bockhoff, Regine] Johannes Gutenberg Univ Mainz, Inst Organism & Mol Evolut iomE, Mainz, Germany
推荐引用方式 GB/T 7714	Naghiloo, Somayeh,Classen-Bockhoff, Regine. A combination of dichogamy and herkogamy mediates reproductive success in the desert shrub Zygophyllum fabago[J],2020,182.
APA	Naghiloo, Somayeh,&Classen-Bockhoff, Regine.(2020).A combination of dichogamy and herkogamy mediates reproductive success in the desert shrub Zygophyllum fabago.JOURNAL OF ARID ENVIRONMENTS,182.
MLA	Naghiloo, Somayeh,et al."A combination of dichogamy and herkogamy mediates reproductive success in the desert shrub Zygophyllum fabago".JOURNAL OF ARID ENVIRONMENTS 182(2020).