By Tod F. Stuessy, Mikio Ono
Oceanic island archipelagos supply many clues approximately evolutionary styles and tactics, and will rightly be regarded as one of the best locations in the world to hunt an realizing of the starting place and elaboration of organic variety. This quantity brings jointly contributions masking quite a number very important matters in modern oceanic island plant biology, targeting styles and strategies in a number of island teams (with emphasis at the Bonin, Hawaiian and Juan Fernandez Islands) to supply a stimulating view of the present nation of analysis and a potential time table for destiny investigations. issues addressed comprise chromosomal version, macromolecular divergence, island biogeography concept, keeping apart mechanisms, modes of speciation and evolution of secondary plant items. the result's a quantity that finds the exact possibilities provided by means of oceanic archipelagos for investigating evolutionary phenomena in vascular vegetation.
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Extra info for Evolution and Speciation of Island Plants
D. (1985a). Additional chromosome numbers of Hawaiian flowering plants. Pacific Science, 39, 302-6. Carr, G. D. (19856). Monograph of the Hawaiian Madiinae (Asteraceae): Argyroxiphium, Dubautia and Wilkesia. Allertonia, 4, 1-123. Carr, G. D. & Baker, J. K. (1977). Cytogenetics of Hibiscadelphus (Malvaceae): a meiotic analysis of hybrids in Hawaii Volcanoes National Park. Pacific Science, 31, 191-4. Carr, G. , Baldwin, B. G. & Kyhos, D. W. (1996). Cytogenetic implications of artificial hybrids between the Hawaiian silversword alliance and North American tarweeds (Asteraceae: Heliantheae-Madiinae).
3. Hawaiian plant groups providing evidence for chromosomal stasis Group or genus Scope of relevant information References Bidens (Asteraceae) Chromosome numbers of 13 of 19 species; comprehensive fertility data from artificial hybridization programs; data on chromosome analysis of hybrids Gillette & Lim, 1970; Ganders & Nagata, 1984 Cyrtandra (Gesneriaceae) Chromosome numbers of 8 of 53 species; fertility data for many putative natural hybrids; limited information on chromosome pairing in putative hybrids Wagner, Herbst & Sohmer, 1990; Luegmayr, 1993; Kiehn, personal communication Hibiscadelphus (Malvaceae) Chromosome numbers of 3 of 6 species; meiotic analysis of spontaneous Fj and F2 hybrids Carr & Baker, 1977 Lipochaeta (Asteraceae) Chromosome numbers of 15 of 20 species; extensive fertility and chromosome pairing data from many interspecific and intersectional hybrids; data from induced polyploids Gardner, 1976, 1977; Rabakonandrianina, 1980; Rabakonandrianina & Carr, 1981 Lobelioids, 7 genera (Campanulaceae) Chromosome numbers of 21 of 110 species; limited data on meiosis in putative natural hybrids; molecular data bearing on evolutionary relationships Lammers, 1988, 1990, 1995; Lammers & Lorence, 1993; Givnish et al, 1995 Pipturus (Urticaceae) Chromosome numbers of 2 of 4 species based on several population samples Nicharat & Gillett, 1970 Scaevola (Goodeniaceae) Chromosome numbers of all 9 species; chromosome pairing Gillett, 1966, 1969; Patterson, data in a natural interspecific hybrid; flavonoid data; 1984a, 1984*, 1995 cladistic analysis of morphological data Lowrey, 1986 Chromosome numbers of 7 of 11 species; comprehensive fertility and chromosome pairing data from artificial interspecific hybrids Tetramolopiwn (Asteraceae) Vaccinium (Ericaceae) Chromosome numbers of 2 of 3 species; fertility data from artificially produced interspecific hybrids Vander Kloet, 1993 Chromosome evolution and speciation 31 indicate the ancestral nature of the 14-paired genome and suggest an Hawaiian origin of the 13-paired genome from one like that possessed by Dubautia scabra (Carr, 19856; Carr et aL, 1989; cf.
Carr, G. D. & Kyhos, D. W. (1981). Adaptive radiation in the Hawaiian silversword alliance (Compositae-Madiinae). I. Cytogenetics of spontaneous hybrids. Evolution, 35, 543-56. Carr, G. D. & Kyhos, D. W. (1986). Adaptive radiation in the Hawaiian silversword alliance (Compositae-Madiinae). II. Cytogenetics of artificial and natural hybrids. Evolution, 40, 959-76. Carr, G. , Powell, E. A. & Kyhos, D. W. (1986). Self-incompatibility in the Hawaiian Madiinae (Compositae): an exception to Baker's Rule.