Abstract

The hybrid origin of the Bidens × decipiens species, which was earlier ascribed to the North American alien species B. connata, was confirmed by analyzing the nucleotide sequences of the ITS nuclear site. The name “B. connata” is indicated as invalid for a taxon that does not grow in North America. Earlier, we tested the hypothesis of hybrid origin of B. × decipiens using ISSR analysis and revealed that B. × decipiens can be considered as a complex of hybrids and backcrosses of B. cernua and B. frondosa. Analysis of the Internal transcribed spacer (ITS) and the trnL-trnF intergenic spacer confirmed the hybrid origin of this taxon and made it possible to establish that B. cernua is the maternal species and B. frondosa with a high probability is the paternal species of the taxon.

中文翻译：

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Bidens×decipiens Warnst的杂种起源问题。

摘要

通过分析ITS核位点的核苷酸序列，可以确定Bidens×decipiens物种的杂种起源，该物种早先归因于北美外来物种B. connata。名称“ B. connata ”表示对于在北美不生长的分类单元无效。此前，我们测试的杂种起源的假说B.×杜英使用ISSR分析并透露B.×杜英可以看作是一个复杂的混合动力和回交B. cernua和B.灰树花。内部转录间隔区（ITS）和trnL-trnF基因间隔区的分析证实了该分类单元的杂种起源，并有可能确定蜡状芽孢杆菌是母本物种，而弗兰氏芽孢杆菌则是该物种的父本物种。分类单元。