著者
YU ITO NORIO TANAKA
出版者
The Japanese Society for Plant Systematics
雑誌
Acta Phytotaxonomica et Geobotanica (ISSN:13467565)
巻号頁・発行日
vol.64, no.1, pp.15-28, 2013-06-29 (Released:2017-03-21)
参考文献数
51

Hybridization is a common phenomenon in many plant genera, and among them is the world's largest aquatic genus, Potamogeton (Potamogetonaceae) with about 69 species and 50 hybrids reported. Here we provide genetic insights into Potamogeton hybrids from China, where ten or more putative hybrids exist, of which eight have been genetically confirmed. In the study presented here, we verified the hybrid status and inferred the origins of three Potamogeton hybrids using molecular phylogenetic analyses of plastid (chloroplast) trnT-trnF and nuclear ITS sequence data sets that include previously published and newly generated data. The hybrids identified were: 1) P. ×inbaensis, a known hybrid from Japan; 2) a hybrid between P. perfoliatus s.l. and P. wrightii, and 3) a hybrid between tetraploid maternal P. distinctus and diploid paternal P. octandrus. Potamogeton ×inbaensis is reported from China for the first time, whereas the latter two hybrids are new to science.

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