一对双胞胎无花果的授粉者共享和杂交,揭示了物种化途径
Jian-Feng Huang1, Jenjira Fungjanthuek1,2, Ming-Bo Chen1,2
1CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China.
Evolution letters
|December 4, 2023
概括
这项关于无花果和黄蜂的研究揭示了正在进行的物种化,尽管存在一些繁殖障碍,但混合种子和黄蜂后代仍然存在,这表明在这种互惠主义中有可能形成新物种.
科学领域:
- 进化生物学 进化生物学
- 生态生态学 生态生态学
- 植物学 植物学
- 昆虫学 昆虫学是一门学科.
背景情况:
- 植物与授粉者之间的相互作用,特别是无花果与黄蜂的相互关系,对于理解生物多样性和进化至关重要.
- 共同物种化是无花果授粉者系统多样化的主要驱动力,密切相关的物种提供了对正在进行的物种化的洞察力.
研究的目的:
- 为了研究两个密切相关的,相似的无花果物种,Ficus heterostyla和Ficus squamosa*之间的物种化的最后阶段.
- 分析挥发性形状,形态和繁殖相容性在这些无花果-黄蜂相互作用多样化中的作用.
主要方法:
- 对两种物种受体无花果发出的挥发性有机化合物的分析.
- 测量授粉者 (黄蜂) 卵巢的长度与无花果的受感性相关.
- 对黄蜂进行实验性交叉引入到异种无花果中,以评估杂交和后代的发展.
主要成果:
- *F. heterostyla*和*F. squamosa*无花果之间的挥发性特征有显著但不完全的分歧,共有25种共同化合物.
- 兼容的形态学和生殖现象学促进杂交,导致杂交种子和黄蜂后代的产生.
- *F. heterostyla* 黄蜂成功地在 *F. squamosa* 无花果中产生了后代,而 *F. squamosa* 黄蜂在 *F. heterostyla* 中经历了发育问题.
结论:
- 证据表明,尽管存在有限的障碍,但在研究的无花果黄蜂系统中,正在进行的专业化和繁殖隔离.
- 这些发现突显了无花果-传粉者编码多样化的动态性质,并且可能适用于其他相关的无花果物种.
更多相关视频
07:07Author Spotlight: A High-Resolution, Single-Grain, In Vivo Pollen Hydration Bioassay for Arabidopsis thaliana
Published on: June 30, 2023
2.6K
07:03Establishing Pollination Requirements in Japanese Plum by Phenological Monitoring, Hand Pollinations, Fluorescence Microscopy and Molecular Genotyping
Published on: November 9, 2020
3.1K
相关概念视频
Pollination and Flower Structure
64.8K
Flowers are the reproductive, seed-producing structures of angiosperms. Typically, flowers consist of sepals, petals, stamens, and carpels. Sepals and petals are the vegetative flower organs. Stamens and carpels are the reproductive organs.
64.8K
Formation of Species
39.3K
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
39.3K
Genetics of Speciation
19.3K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.3K
Hybrid Zones
17.0K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
17.0K
What is a Species?
44.1K
Overview
44.1K
Gene Flow
35.1K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.1K
