共 31 条
A primary study of breeding system of Ziziphus jujuba var. spinosa
被引:11
作者:
Wang, Feng
[1
,2
,3
]
Sun, Xiaohan
[1
,2
,3
]
Dong, Jibin
[1
,2
,3
]
Cui, Rong
[1
,2
,3
]
Liu, Xiao
[1
,2
,3
]
Li, Xiangxiang
[1
,2
,3
]
Wang, Hui
[1
,2
,3
]
He, Tongli
[1
,2
,3
]
Zheng, Peiming
[1
,2
,3
]
Wang, Renqing
[1
,2
,3
]
机构:
[1] Shandong Univ, Sch Life Sci, Inst Ecol & Biodivers, 72 Binhai Rd, Qingdao 266237, Peoples R China
[2] Shandong Univ, Shandong Prov Engn & Technol Res Ctr Vegetat Ecol, Qingdao, Peoples R China
[3] Shandong Univ, Qingdao Forest Ecol Res Stn Natl Forestry & Grass, Qingdao, Peoples R China
关键词:
INBREEDING DEPRESSION;
REPRODUCTIVE SUCCESS;
SELF-FERTILIZATION;
FRUIT PRODUCTION;
JUJUBOSIDE-A;
WILD JUJUBE;
POLLINATION;
EVOLUTION;
ECOLOGY;
POLLEN;
D O I:
10.1038/s41598-021-89696-1
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Ziziphus jujuba var. spinosa has been used as a windbreak and for soil conservation and water retention. Previous studies focused on pharmacological effects and extraction of chemical components in this species, and very few explored the breeding system. The present study combined the analysis of floral morphology, behavior of flower visitors, and artificial pollination to reveal reproductive characteristics of the species. Its flowers are characterized by dichogamy, herkogamy, and stamen movement, which are evolutionary adaptations to its breeding system. There were more than 40 species of visiting insects, mainly Hymenoptera and Diptera, and the characteristics of dichogamous and herkogamous flower adapted to the visiting insects. The breeding system is outcrossing, partially self-compatible, and demand for pollinators. The fruit setting rate after natural pollination was 2%. Geitonogamy and xenogamy did not significantly increase the fruit setting rate, indicating that the low fruit setting rate was not due to pollen limitation by likely caused by resource limitation or fruit consumption. The fruit setting rate of zero in emasculated and in naturally and hand self-pollinated individuals suggested the absence of apomixis and spontaneous self-pollination. The above results can be utilized in studies on evolution and cultivation of Z. jujuba var. spinosa.
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页数:10