Molecular Evidence on the Origin of Osmunda ×mildei (Osmundaceae)

C. Tsutsumi; Y. Hirayama; M. Kato; Y. Yatabe-Kakugawa; S-Z. Zhang

doi:10.1640/0002-8444-102.1.55

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C. Tsutsumi,^1,* Y. Hirayama,¹ M. Kato,¹ Y. Yatabe-Kakugawa,² S-Z. Zhang³

¹aDepartment of Botany, National Museum of Nature and Science, Amakubo, Tsukuba 305-0005, Japan
²bBotanical Gardens, Graduate School of Science, the University of Tokyo, Hakusan, Tokyo 112-0001, Ja
³cShenzhen Fairylake Botanical Garden, Luohu District, Shenzhen, Guangdong, China 518004

^*Corresponding author: (e-mail: tsutsumi@kahaku.go.jp)

Abstract

The southern Chinese Osmunda ×mildei has been suggested to be an intersubgeneric hybrid, i.e., O. japonica (subgenus Osmunda) × O. angustifolia (subgenus Plenasium) or O. japonica × O. vachellii (subgenus Plenasium). These interpretations were based on morphological, cytological, and/or chloroplast DNA data, yet the parents of the hybrid remained unclear. Molecular phylogenetic relationships inferred here from chloroplast rbcL sequences and three nuclear DNA markers show that O. ×mildei is most likely a hybrid between the paternal O. japonica and the maternal O. vachellii.

Citation Download Citation

C. Tsutsumi, Y. Hirayama, M. Kato, Y. Yatabe-Kakugawa, and S-Z. Zhang "Molecular Evidence on the Origin of Osmunda ×mildei (Osmundaceae)," American Fern Journal 102(1), 55-68, (1 January 2012). https://doi.org/10.1640/0002-8444-102.1.55

Published: 1 January 2012

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