Allogamy, metaxenia and hybrids in orchids, what do we know about it?

IF 1.1 4区生物学 Q3 PLANT SCIENCES

Botanical Sciences Pub Date : 2024-06-05 DOI:10.17129/botsci.3470

José Martín Barreda-Castillo, E. R. Pansarin, J. L. Monribot-Villanueva, J. A. Guerrero-Analco, R. Menchaca-García

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Abstract

Orchids are a diverse group of plants, also manifested in their great diversity of flowers. Despite this, orchids are pollinated either through autogamy or allogamy (geitonogamy and xenogamy). Although there are some autogamous orchids, the majority are allogamous, mainly pollinated by xenogamy since they present physical or genetic barriers that prevent self-pollination. In addition, orchids are known for their capacity for interspecific pollination, which could influence fruits (metaxenia) and seeds (xenia) production. Its capacity for hybridization represents an opportunity to produce organisms tolerant to biotic or abiotic stress, in addition to exhibiting new shapes, colors and fragrances; this would be important in horticulture, where the proper selection of parents provides those advantages to the descendant hybrids. This review addresses the characteristics of each type of reproduction systems in orchids, as well as their advantages and disadvantages. At the same time, the study of the induction effect of metaxenia and xenia in this family is proposed. Finally, the production of orchid hybrids is contextualized and the opportunities of this approach in the near future.

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兰花中的异花授粉、中生代和杂交种，我们对此了解多少？

兰花是种类繁多的植物，这也体现在其花朵的多样性上。尽管如此，兰花还是通过自交或异交（地交和异花传粉）进行授粉。虽然有些兰花是自花授粉，但大多数兰花是异花授粉，主要通过异花授粉，因为它们的物理或遗传障碍阻止了自花授粉。此外，众所周知，兰花具有种间授粉能力，这可能会影响果实（metaxenia）和种子（xenia）的产量。兰花的杂交能力使其有机会培育出耐受生物或非生物压力的生物，此外还能展示新的形状、颜色和香味；这在园艺中非常重要，因为适当选择亲本可为后代杂交种提供这些优势。本综述介绍了兰花每种繁殖系统的特点及其优缺点。同时，还提出了对该科植物中雌雄同株和雌雄同株诱导效应的研究。最后，介绍了兰花杂交种的生产情况以及这种方法在不久的将来的机遇。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Botanical Sciences Agricultural and Biological Sciences-Plant Science

CiteScore

1.90

自引率

21.40%

发文量

审稿时长

16 weeks

期刊介绍： Botanical Sciences welcomes contributions that present original, previously unpublished results in Botany, including disciplines such as ecology and evolution, structure and function, systematics and taxonomy, in addition to other areas related to the study of plants. Research reviews are also accepted if they summarize recent advances in a subject, discipline, area, or developmental trend of botany; these should include an analytical, critical, and interpretative approach to a specific topic. Acceptance for reviews will be evaluated first by the Review Editor. Opinion Notes and Book Reviews are also published as long as a relevant contribution in the study of Botany is explained and supported.