| Breeding system and pollination of two closely related bamboo species | |
Chen, Ling-Na1; Cui, Yong-Zhong1; Wong, Khoon-Meng2; Li, De-Zhu3 ; Yang, Han-Qi1
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| 2017 | |
| 发表期刊 | AOB PLANTS
 |
| ISSN | 2041-2851 |
| 卷号 | 9页码:plx021 |
| 摘要 | An understanding of the breeding systems and pollination of agriculturally important plants is critical to germplasm improvement. Breeding system characteristics greatly influence the amount and spatial distribution of genetic variation within and amongst populations and influence the rarity and extinction vulnerability of plant species. Many woody bamboos have a long vegetative period (20-150 years) followed by gregarious monocarpy. Relatively, little is known about their pollination and breeding systems. We studied these characteristics in wild Dendrocalamus membranaceus populations and cultivated Dendrocalamus sinicus populations distributed in the Yunnan Province of China. Floral morphology, flower visitors and breeding system were studied from 2013 to 2015. Both bamboos were protogynous, but flowering periods of florets overlapped providing opportunities for self-pollination amongst florets, especially in D. membranaceus. There was no agamospermy in either species. Seed set of D. sinicus was low (0.42 +/- 0.42 %) under natural pollination but higher (8.89 +/- 2.55 %) after artificial xenogamy. Seed set of D. membranaceus was higher (7.49 +/- 0.82 %) in mass flowering populations and 2.14 +/- 0.25% in sporadically flowering populations. The Asian honeybee Apis cerana could provide cross-pollination of D. membranaceus and D. sinicus, and flower visitation peaked at 1000-1200 h. Pollination limitation due to lack of pollinators or pollen was detected in the cultivated populations of D. sinicus and sporadically flowering populations of D. membranaceus. Pollination limitation was not obvious within mass flowering populations. Hand pollination could significantly increase seed set of these two bamboo species. Dendrocalamus membranaceus and D. sinicus were self-compatible and have a mixed-mating system with outcrossing being pre-dominant. Their seed production was limited by the quantity of pollen and pollinator activity. Honeybees were observed as effective pollinators. |
| 关键词 | Breeding System Dendrocalamus Membranaceus Dendrocalamus Sinicus Floral Morphology Pollination Limitation Pollinators Woody Bamboo |
| DOI | 10.1093/aobpla/plx021 |
| 语种 | 英语 |
| WOS记录号 | WOS:000410136200003 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/54817 |
| 专题 | 中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Chinese Acad Forestry, Res Inst Insect Resources, Kunming 650233, Yunnan, Peoples R China 2.Singapore Bot Gardens, 1 Cluny Rd, Singapore 259569, Singapore 3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ling-Na,Cui, Yong-Zhong,Wong, Khoon-Meng,et al. Breeding system and pollination of two closely related bamboo species[J]. AOB PLANTS,2017,9:plx021. |
| APA | Chen, Ling-Na,Cui, Yong-Zhong,Wong, Khoon-Meng,Li, De-Zhu,&Yang, Han-Qi.(2017).Breeding system and pollination of two closely related bamboo species.AOB PLANTS,9,plx021. |
| MLA | Chen, Ling-Na,et al."Breeding system and pollination of two closely related bamboo species".AOB PLANTS 9(2017):plx021. |
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| chen2017.pdf（7422KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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