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High autonomous selfing capacity and low flower visitation rates in a subalpine population of Prunella vulgaris (Lamiaceae)
Ling, TC (Ling, Tial C.)1,2,3; Wang, LL (Wang, Lin-Lin)1,2; Zhang, ZQ (Zhang, Zhi-Qiang)1,2; Dafni, A (Dafni, Amots)4; Duan, YW (Duan, Yuan-Wen)1,2; Yang, YP (Yang, Yong-Ping)1,2; Yang, YP
Source PublicationPLANT ECOLOGY AND EVOLUTION
2017
Volume150Issue:1Pages:59-66
DOI10.5091/plecevo.2017.1274
AbstractBackground and aims - Autonomous selfing is a potential strategy to overcome pollinator scarcity or unreliability, but the specific mechanisms of autonomous selfing need further study to clarify our understanding of this phenomenon. This study investigated the mechanism of autonomous selling in a subalpine population of Prunella vulgaris (Lamiaceae), a species with didynamous stamens.
Methods - We studied the floral biology, pollinator activity, and breeding system of Prunella vulgaris in a natural population. The short stamens and long stamens were removed separately to examine their contribution to self -pollinated seed production. In addition, the stamens were removed at different developmental stages to determine the timing of autonomous selling.
Key results - The short stamens were closer to the stigma than the long stamens. Seed production after removal of the long stamens was higher than following removal of the short stamens, suggesting that spatial separation of the anthers from the stigma is crucial and pollen from the short stamens contributes most frequently to self-pollination. Self-fertilization started at the final bud stage of flower development, which may be consistent with the prior selfing mode, but seed production gradually increased during the flower life-span, suggesting that competing selfing and delayed selfing may also contribute to autonomous selfing. Bagged flowers set as many seeds as flowers hand -pollinated with outcross pollen or self-pollen, and thus the population shows a high capacity for autonomous selling. Emasculated flowers open to visitation by pollinators produced almost no seed, showing that the pollinator-visitation rate was low, and that the majority of the seeds in intact flowers resulted from self-fertilization.
Conclusions - The findings show that under low pollinator availability, preanthesis autogamy is likely to be selectively advantageous as a reproductive assurance mechanism in a subalpine population of Prunella vulgaris.
Subject Area植物学
WOS IDWOS:000398878300006
Language英语
Indexed BySCI
KeywordREPRODUCTIVE ASSURANCE BENEFIT CROSS-FERTILIZATION POLLEN LIMITATION INBREEDING DEPRESSION BREEDING SYSTEM FLORAL TRAITS EVOLUTION PLANTS SIZE POLLINATION
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences ; Plant Sciences
Cooperation Status国际
SubtypeArticle
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8382
Collection图书馆
Corresponding AuthorYang, YP
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China.
2.Chinese Acad Sci, Kunming Inst Bot, Inst Tibetan Plateau Res Kunming, Kunming 650201, Yunnan, Peoples R China.
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
4.Univ Haifa, Inst Evolut, Dept Evolutionary & Environm Biol, Haifa, Israel.
Recommended Citation
GB/T 7714
Ling, TC ,Wang, LL ,Zhang, ZQ ,et al. High autonomous selfing capacity and low flower visitation rates in a subalpine population of Prunella vulgaris (Lamiaceae)[J]. PLANT ECOLOGY AND EVOLUTION,2017,150(1):59-66.
APA Ling, TC .,Wang, LL .,Zhang, ZQ .,Dafni, A .,Duan, YW .,...&Yang, YP.(2017).High autonomous selfing capacity and low flower visitation rates in a subalpine population of Prunella vulgaris (Lamiaceae).PLANT ECOLOGY AND EVOLUTION,150(1),59-66.
MLA Ling, TC ,et al."High autonomous selfing capacity and low flower visitation rates in a subalpine population of Prunella vulgaris (Lamiaceae)".PLANT ECOLOGY AND EVOLUTION 150.1(2017):59-66.
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