Molecular Phylogeny and Biogeography of the Genus Ilex L. (Aquifoliaceae)

Cuénoud, Philippe; Martínez, María A. Del Pero; Loizeau, Pierre-André; Spichiger, R.; Andrews, Susyn; Manen, Jean‐François

doi:10.1006/anbo.1999.1003

Cited by 92 publications

(86 citation statements)

References 18 publications

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“…However, as the Canary Islands are relatively close to the African mainland, an active dispersal route between part of Macaronesia and Africa may exist (FranciscoOrtega et al 1999). There are several documented examples of multiple colonizations of the Macaronesian archipelago, particularly of the Canary Islands Cuénoud et al 2000;Hess et al 2000;Park et al 2001;Fuertes-Aguilar et al 2002;Percy and Cronk 2002). In the case of Helichrysum, the different ancestors of the present species in Macaronesia probably reached the islands through wind dispersion of the tiny (;1 mm), light seeds.…”

Section: Biogeographic Implicationsmentioning

confidence: 96%

Phylogeny, Biogeography, and Character Evolution in Mediterranean, Asiatic, and Macaronesian Helichrysum (Asteraceae, Gnaphalieae) Inferred from Nuclear Phylogenetic Analyses

Galbany‐Casals¹,

Garcia‐Jacas

Sáez

et al. 2009

International Journal of Plant Sciences

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The genus Helichrysum has 500-600 species in Africa, Madagascar, the Mediterranean basin, Macaronesia, western and central Asia, and India. The aims of this study are to confirm the exclusion of Castroviejoa from Helichrysum, to elucidate the origin of the Macaronesian endemics, to confirm the monophyly of the Mediterranean-Asiatic group, and, within this group, to contrast molecular data with sectional classification and to provide insight into trends in character evolution and biogeography. To address these issues, ITS and ETS sequences were used in phylogenetic analyses. Results show that Castroviejoa is excluded from Helichrysum. The phylogeny obtained suggests a southern African origin for Helichrysum and several subsequent migrations throughout the African continent. The species from the Canary Islands do not form a monophyletic clade, suggesting that at least two independent colonization events occurred. Helichrysum makranicum, from Oman and southern Iran, is the closest relative of a clade consisting of two endemics of the Canary Islands, providing new evidence of the phytogeographical links between Macaronesia and eastern Africa-southern Arabia. Helichrysum gossypinum, the third endemic of the Canary Islands, is the sister species of a monophyletic Mediterranean and Asiatic group, with the four endemics of Madeira sister to all of them. Within the Mediterranean-Asiatic clade, sect. Stoechadina is monophyletic, but sect. Helichrysum and sect. Virginea are not. Once in the Mediterranean region, the genus is hypothesized to have diversified and expanded to the east up to western and central Asia and to have suffered a reduction in woodiness.

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Section: Biogeographic Implicationsmentioning

confidence: 96%

Phylogeny, Biogeography, and Character Evolution in Mediterranean, Asiatic, and Macaronesian Helichrysum (Asteraceae, Gnaphalieae) Inferred from Nuclear Phylogenetic Analyses

Galbany‐Casals¹,

Garcia‐Jacas

Sáez

et al. 2009

International Journal of Plant Sciences

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“…Recent molecular phylogenetic work by Cuénoud et al (2000) challenges the current classification system for Ilex. Unfortunately, their results are not strongly supported nor do they include all the holly leafminer hosts, so rigorous comparison of their holly tree to our leafminer tree is not possible.…”

Section: Figmentioning

confidence: 99%

Molecular Phylogenetics of the Holly Leafminers (Diptera: Agromyzidae: Phytomyza): Species Limits, Speciation, and Dietary Specialization

Scheffer

Wiegmann

2000

Molecular Phylogenetics and Evolution

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“…As these populations are morphologically, however, weakly (if at all) differentiated from H. luteoalbum, we are not convinced that its separation from H. luteoalbum is justified and therefore refrain from validating the systematically correct name in Helichrysum. Similar cases of multiple colonizations of the mid-Atlantic islands by a single genus are documented from other genera, particularly for the Canary Islands (Francisco-Ortega et al 1999;Cuénoud et al 2000;Hess et al 2000;Park et al 2001;Fuertes-Aguilar et al 2002;Percy and Cronk 2002). In the case of Helichrysum, the different ancestors of the present species in the mid-Atlantic archipelagos probably reached the islands through wind dispersion of the tiny (ca.…”

Section: Biogeographic Implicationsmentioning

confidence: 79%

Helichrysum nicolai (Compositae, Gnaphalieae), Systematics of a New Dwarf Local Endemic of the Cape Verde Islands, W Africa

2010

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Helichrysum nicolai from the Cape Verdean island of São Nicolau is described as a species new to science and illustrated. The systematic position in Helichrysum of this acaulescent dwarf rosette shrub with heterogamous capitula, in which the female flowers outnumber the hermaphrodite ones, is established using an ITS phylogeny based on maximum parsimony and Bayesian inference analyses. The new species is most closely related to the Canary Island endemics H. alucense and H. monogynum. The closest relative to these three species are not the other members of the genus on the mid-Atlantic archipelagos but H. somalense from the Horn of Africa region and the southern Arabian Peninsula and the widespread tropical African-S Arabian-SE Iranian H. glumaceum, to which the SE Iranian H. makranicum is found to be conspecific. The phytogeographical significance of these relationships is discussed and at least three independent colonization events of the mid-Atlantic archipelagos by Helichrysum are concluded from the molecular data available.

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Molecular Phylogeny and Biogeography of the Genus Ilex L. (Aquifoliaceae)

Cited by 92 publications

References 18 publications

Phylogeny, Biogeography, and Character Evolution in Mediterranean, Asiatic, and Macaronesian Helichrysum (Asteraceae, Gnaphalieae) Inferred from Nuclear Phylogenetic Analyses

Phylogeny, Biogeography, and Character Evolution in Mediterranean, Asiatic, and Macaronesian Helichrysum (Asteraceae, Gnaphalieae) Inferred from Nuclear Phylogenetic Analyses

Molecular Phylogenetics of the Holly Leafminers (Diptera: Agromyzidae: Phytomyza): Species Limits, Speciation, and Dietary Specialization

Helichrysum nicolai (Compositae, Gnaphalieae), Systematics of a New Dwarf Local Endemic of the Cape Verde Islands, W Africa

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