Polyploid—Diploid coexistence in the greater duckweed Spirodela polyrhiza

IF 5.6 1区环境科学与生态学 Q1 ECOLOGY

Journal of Ecology Pub Date : 2025-07-10 DOI:10.1111/1365-2745.70096

Frederik Mortier, Yves Van de Peer, Dries Bonte

引用次数: 0

Abstract

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多倍体-二倍体在大浮萍中共存

多倍体在植物中广泛存在，并且通常与能够促进其建立的压力环境有关。成功的新多倍体必须克服与其祖先相比的竞争劣势，或者从负频率依赖性生长中获益。研究了新四倍体浮萍菌株（Spirodela polyrhiza）在对照和盐胁迫条件下对其二倍体祖先种群的入侵。我们还测试了相反的情况：二倍体入侵新四倍体种群，以检查初始四倍体比例的影响。在所有四倍体和二倍体入侵中，四倍体比例都下降了，但下降的速度不同于仅凭内在生长速率差异预测的速度。盐胁迫以菌株特异性的方式影响其下降。我们发现了负频率依赖性生长的证据，尽管如此，这不足以克服新多倍体的竞争劣势。合成。我们的研究结果证明了竞争和频率依赖对新多倍体建立的关键作用。因此，我们警告不要仅仅根据内在增长率来推断新多倍体的成功。

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来源期刊

Journal of Ecology 环境科学-生态学

CiteScore

10.90

自引率

5.50%

发文量

207

审稿时长

3.0 months

期刊介绍： Journal of Ecology publishes original research papers on all aspects of the ecology of plants (including algae), in both aquatic and terrestrial ecosystems. We do not publish papers concerned solely with cultivated plants and agricultural ecosystems. Studies of plant communities, populations or individual species are accepted, as well as studies of the interactions between plants and animals, fungi or bacteria, providing they focus on the ecology of the plants. We aim to bring important work using any ecological approach (including molecular techniques) to a wide international audience and therefore only publish papers with strong and ecological messages that advance our understanding of ecological principles.