ArticleJournal of plant research2014
Reticulate evolution in the apogamous Dryopteris varia complex (Dryopteridaceae, subg. Erythrovariae, sect. Variae) and its related sexual species in Japan.
Article in Journal of plant research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 47 citations in OpenAlex.
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- Virtual issue: Ecology and evolution of pteridophytes in the era of molecular genetics.Journal of plant research · 2019Article
- An update and reassessment of fern and lycophyte diversity data in the Japanese Archipelago.Journal of plant research · 2019Article
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- Phylogenetic analysis reveals the origins of tetraploid and hexaploid species in the Japanese Lepisorus thunbergianus (Polypodiaceae) complex.Journal of plant research · 2018Article
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7 authors at 4 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Apogamous fern species are often difficult to distinguish from related species because of their continuous morphological variations. To clarify the genetic relationships among the members of the Dryopteris varia complex, we analyzed the nucleotide sequences of the plastid gene rbcL and the nuclear gene PgiC. We also analyzed the diploid sexual species D. caudipinna and D. chinensis, which have not been included in the complex, but were recently shown to be closely related to the complex in a molecular phylogenetic study. The PgiC sequences of the diploid sexual species, D. varia, D. saxifraga, D. sp. 'protobissetiana' (undescribed diploid sexual species), D. caudipinna, and D. chinensis, were well differentiated and hence designated A, B, C, D, and E, respectively. Thus, the PgiC constitution of apogamous species in the complex was as follows: D. bissetiana, B + C; D. kobayashii, B + C + E); D. pacifica, A + C, A + B + C, or A + C + D; D. sacrosancta, A + C + E; and D. saxifragivaria, B + C. These results suggest that these apogamous species are formed by hybridizations of species including not only the three diploid sexual species of the D. varia complex (A, B, and C) but also the two diploid sexual species D. caudipinna (D) and D. chinensis (E), which do not belong to the complex.
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