Apostasia fujianica (Apostasioideae, Orchidaceae), a new Chinese species: evidence from morphological, genome size and molecular analyses

YUANYUAN  LI; LIANG MA; DING-KUN LIU; XUE-WEI ZHAO; DIYANG ZHANG; SHIJIE KE; GUI-ZHEN CHEN; QINYAO ZHENG; ZHONG-JIAN LIU; SIREN LAN

doi:10.11646/phytotaxa.583.3.6

Issue: Vol. 583 No. 3: 7 February 2023

Type: Article

Published: 2023-02-07

DOI: 10.11646/phytotaxa.583.3.6

Page range: 277–284

Abstract views: 45

PDF downloaded: 4

Apostasia fujianica (Apostasioideae, Orchidaceae), a new Chinese species: evidence from morphological, genome size and molecular analyses

YUANYUAN LI⁺⁻
LIANG MA⁺⁻
DING-KUN LIU⁺⁻
XUE-WEI ZHAO⁺⁻
DIYANG ZHANG⁺⁻
SHIJIE KE⁺⁻
GUI-ZHEN CHEN⁺⁻
QINYAO ZHENG⁺⁻
ZHONG-JIAN LIU⁺⁻
SIREN LAN⁺⁻

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Fujian Health College, Fuzhou, Fujian 350101, China

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350000, China

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350000, China

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization at College of Landscape Architecture and Art, Fujian Agriculture and Forestry University, Fuzhou 350002, China, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350000, China

Monocots Asian orchids C-value Chinese flora Chinese orchids genome size orchids of Fijian

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Abstract

After examining morphological, molecular and genome-size evidence, we here describe a new orchid species, Apostasia fujianica, from Fujian, China. Morphological comparisons indicated that A. fujianica is similar to A. shenzhenica and A. nipponica, whereas the former displayed distinct differences in habit, roots, leaves, inflorescences and fruit shape and size. Apostasia fujianica (341 Mb) has a smaller genome size than A. shenzhenica (471 Mb), A. ramifera (366 Mb) and A. fogangica (931 Mb). Molecular analyses from combined nuclear (ITS, Xdh, naD1) and plastid (matK, rbcL, psbA-trnH, trnL-trnF and trnS-trnG) datasets indicated that A. fujianica is sister to A. shenzhenica. These results support the status of A. fujianica as a new species, distinguished in many aspects from A. shenzhenica, A. ramifera and A. nipponica.

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