SPECIES DELIMITATION IN NICOTIANA SECT. SUAVEOLENTES (SOLANACEAE): RECIPROCAL ILLUMINATION LEADS TO RECOGNITION OF MANY NEW SPECIES
SPECIES DELIMITATION IN NICOTIANA SECT. SUAVEOLENTES (SOLANACEAE): RECIPROCAL ILLUMINATION LEADS TO RECOGNITION OF MANY NEW SPECIES
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DOI：
10.1111/curt.12410
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发表时间：
2021-09-01
期刊：
影响因子：
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通讯作者：
Paun, Ovidiu
中科院分区：
文献类型：
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作者：
Chase, Mark W.;Christenhusz, Maarten J. M.;Paun, Ovidiu
在柯蒂斯植物学杂志的这一卷中，我们将烟草科的物种数量从39年前出版的《澳大利亚植物志》中记录的21种增加到38种，但我们估计最终的数量可能超过60种。我们研究了这么多未被认识的物种存在的原因。一些澳大利亚和美国的植物学家以前专门研究烟草，但没有发现所有这些多样性。我们进行了许多实地考察，在野外看到了大多数已知的物种，并在不同地区并排种植了这些物种，以避免将物种特征的决定建立在受环境可塑性严重影响的特征上。最后，我们得出结论，这是集中和广泛的田野调查和最近的基因组学、遗传学和核生物学研究在相互启发的过程中结合在一起的混合物，这使我们能够描述这么多新物种。我们还简要地讨论了为什么烟草在澳大利亚的物种如此丰富。
In this volume of Curtis's Botanical Magazine, we increase the number of species recognised in Nicotiana sect. Suaveolentes to 38, up from the 21 recorded in the Flora of Australia published 39 years ago, but we estimate the final number is likely to exceed 60. We examine the reasons why so many unrecognised species exist. Several Australian and American botanists have previously specialised in Nicotiana but did not detect all such diversity. We have carried out many fieldtrips, seen most known species in the wild and have grown these accessions from diverse areas side-by-side in cultivation to avoid basing decisions about species characteristics on features heavily influenced by environmental plasticity. In the end, we conclude that it is a mixture of focused and extensive fieldwork and more recent genomic, genetic and karyological studies combined in the process of reciprocal illumination, that has enabled us to describe so many new species. We also briefly focus on the topic of why Nicotiana is so species-rich in Australia.