Discovery of the Northern Hemisphere hybrid Potamogeton ×salicifolius in the Pilbara region of Western Australia

IF 0.5 4区生物学 Q4 PLANT SCIENCES

Telopea Pub Date : 2019-10-03 DOI:10.7751/telopea13434

Z. Kaplan, J. Fehrer, R. W. Jobson

引用次数: 3

Abstract

The interspecific hybrid Potamogeton ×salicifolius (= P. lucens × P. perfoliatus), so far known only from several countries of Europe and a few countries of Asia, was discovered in Western Australia. Morphology of the Australian specimens fits the variation range of the Eurasian specimens. DNA sequencing confirmed the morphological identification as a hybrid P. lucens × P. perfoliatus and identified the former species as the maternal one. This identity is surprising because none of the parental species are known to occur in Western Australia and P. lucens currently even does not occur in the continent. Three possible explanations for the occurrence of P. ×salicifolius in Western Australia are discussed: its relictual occurrence from the time when both the parental species occurred there, long-distance dispersal of a hybrid seed from Eurasia and the remnant of local cultivation or intentional planting.

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在西澳大利亚皮尔巴拉地区发现北半球杂交马铃薯×salicifolius

在西澳大利亚发现了一种种间杂交植物Potamogeton ×salicifolius (= P. lucens × P. perfoliatus)，迄今为止只在欧洲的一些国家和亚洲的一些国家发现。澳大利亚标本的形态符合欧亚标本的变异范围。DNA测序证实形态鉴定为lucens与perfoliatus的杂交种，前者为母系种。这种特性是令人惊讶的，因为在西澳大利亚没有已知的亲本物种，而且目前甚至没有在大陆出现过P. lucens。本文讨论了P. ×salicifolius在西澳大利亚出现的三种可能的解释:亲本种在那里出现的时间，来自欧亚大陆的杂交种子的远距离传播，以及当地种植或故意种植的残余。

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

Telopea PLANT SCIENCES-

CiteScore

1.30

自引率

42.90%

发文量

期刊介绍： Manuscripts submitted for publication in TELOPEA are published online, after peer review and acceptance by the TELOPEA Editorial Committee and when final editorial formatting has been completed. The journal specialises in plant systematics and phylogeny. The geographic scope of the journal encompasses Australia, Malesia, Melanesia, Micronesia, and Polynesia. The suitability of a work for the journal depends on the topic and the region of origin, generally the narrower the focus of the manuscript the closer to New South Wales must be its geographic focus. As a general guide, we will consider: 1) revisionary treatments and other substantial bodies of work from any of the regions mentioned above. 2) new species from any Australian state. 3) new country records for Australia from any state. 4) new state records from New South Wales only. However, we aim to support botanical research across the broader Australasian and Pacific region, and will consider submissions on their merit. Generally we will not consider extraterritorial new country records, or single lectotypification papers unless they pertain to New South Wales taxa, or have significant bearing on the Australian flora.