ITS Base Sequence Phylogeny in Bidens (Asteraceae): Evidence for the Continental Relatives of Hawaiian and Marquesan Bidens

Ganders, Fred R.; Berbee, Mary L.; Pirseyedi, Mona

doi:10.2307/2666678

Cited by 67 publications

(56 citation statements)

References 28 publications

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“…Additional plant lineages exhibit very low levels of sequence divergence between taxa in the Hawaiian Islands (despite including many species or considerable morphological diversity), indicating rapid divergence from a recent colonization or single transfer event: Alsinoidae (32 species, two endemic genera; Soltis et al 1996), Bidens (19 species; Ganders et al 2000), and Pittosporum (11 species; Gemmill et al 2002). Five additional singlespecies bird lineages (common moorhen, Hawaiian coot, black-crowned night heron, short-eared owl and Old World white-tailed eagle) are morphologically or genetically very similar to outside taxa, indicating recent arrival (Fleischer & McIntosh 2001).…”

Section: Discussionmentioning

confidence: 99%

How old is the Hawaiian biota? Geology and phylogeny suggest recent divergence

Price

Clague

2002

Proc. R. Soc. Lond. B

287

358

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This study quantifies long-term landscape changes in the Hawaiian archipelago relating to dispersal, speciation and extinction. Accounting for volcano growth, subsidence and erosion, we modelled the elevations of islands at time intervals of 0.5 Myr for the last 32 Myr; we also assessed the variation in the spacing of volcanoes during this period. The size, spacing and total number of volcanic islands have varied greatly over time, with the current landscape of large, closely spaced islands preceded by a period with smaller, more distantly spaced islands. Considering associated changes in rates of dispersal and speciation, much of the present species pool is probably the result of recent colonization from outside the archipelago and divergence within contemporary islands, with limited dispersal from older islands. This view is in accordance with abundant phylogenetic studies of Hawaiian organisms that estimate the timing of colonization and divergence within the archipelago. Twelve out of 15 multi-species lineages have diverged within the lifetime of the current high islands (last 5 Myr). Three of these, and an additional seven (mostly singlespecies) lineages, have colonized the archipelago within this period. The timing of colonization of other lineages remains uncertain.

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Section: Discussionmentioning

confidence: 99%

How old is the Hawaiian biota? Geology and phylogeny suggest recent divergence

Price

Clague

2002

Proc. R. Soc. Lond. B

287

358

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“…This has been demonstrated for numerous plant lineages in the Hawaiian Islands (Eggens et al 2007), with some of these sharing affinities with the Marquesas (Ganders et al 2000) and the Societies (Cuenoud et al 2000). All Hawaiian spider radiations studied show affinities with the Americas, with two of these-jumping spiders (Salticidae; Arnedo & Gillespie 2006) and crab spiders (Thomisidae; Garb & Gillespie 2006)-including the Society and Marquesas Islands in a large central Pacific lineage.…”

Section: Colonization Of the Islandsmentioning

confidence: 99%

Biogeography of the fauna of French Polynesia: diversification within and between a series of hot spot archipelagos

Gillespie

Claridge

Goodacre

2008

Phil. Trans. R. Soc. B

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The islands of French Polynesia cover an area the size of Europe, though total land area is smaller than Rhode Island. Each hot spot archipelago (Societies, Marquesas, Australs) is chronologically arranged. With the advent of molecular techniques, relatively precise estimations of timing and source of colonization have become feasible. We compile data for the region, first examining colonization (some lineages dispersed from the west, others from the east). Within archipelagos, blackflies (Simulium) provide the best example of adaptive radiation in the Societies, though a similar radiation occurs in weevils (Rhyncogonus). Both lineages indicate that Tahiti hosts the highest diversity. The more remote Marquesas show clear examples of adaptive radiation in birds, arthropods and snails. The Austral Islands, though generally depauperate, host astonishing diversity on the single island of Rapa, while lineages on other islands are generally widespread but with large genetic distances between islands. More recent human colonization has changed the face of Polynesian biogeography. Molecular markers highlight the rapidity of Polynesian human (plus commensal) migrations and the importance of admixture from other populations during the period of prehistoric human voyages. However, recent increase in traffic has brought many new, invasive species to the region, with the future of the indigenous biota uncertain.

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“…Recent studies of ITS and ETS sequences within Mimulus (Beardsley and Olmstead 2001) indicate that species in Erythranthe are part of a recent radiation, a fact that has made phylogenetic reconstruction solely with ITS and/or ETS more challenging in other groups (Aquilegia [Hodges 1997]; Bidens [Ganders et al 2000]). Polymorphic DNA-based markers, such as AFLPs, have been useful in plant phylogenetic studies (Wolfe and Liston 1998;Caicedo et al 1999;Xu and Sun 2001;Zhang et al 2001) when DNA sequence variation is limited.…”

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confidence: 99%

Aflp Phylogeny of Mimulus Section Erythranthe and the Evolution of Hummingbird Pollination

Beardsley¹,

2003

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Abstract. Species in Mimulus section Erythranthe (monkeyflowers) have become model systems for the study of the genetic basis of ecological adaptations. In this study, we pursued two goals. First, we reconstructed the phylogeny of species in Erythranthe using both DNA sequences from the ribosomal DNA ITS and ETS and AFLPs. Data from rDNA sequences support the monophyly of the section, including M. parishii, but provide little support for relationships within it. Analyses using AFLP data resulted in a well-supported hypothesis of relationships among all Erythranthe species. Our second goal was to reconstruct ancestral pollination syndromes and ancestral states of individual characters associated with hummingbird-pollinated flowers. Both parsimony and likelihood approaches indicate that hummingbird pollination evolved twice in Erythranthe from insect-pollinated ancestors. Our reconstruction of individual characters indicates that corolla color and some aspects of corolla shape change states at the same point on the phylogenetic tree as the switch to hummingbird pollination; however, a switch to secretion of high amounts of nectar does not. Floral trait transformation may have been more punctuational than gradual. Well-resolved species-level phylogenies and estimates of ancestral states are necessary to interpret and understand the evolution of interesting ecological adaptations between species. Ancestral pollination syndromes and character states in hummingbird-pollinated plants have received particular attention from plant evolutionary biologists. Stebbins (1989) estimated that 108 of 129 hummingbird-pollinated taxa in the western United States have sister taxa that are insectpollinated with hummingbird pollination being the derived state. In a review of attempts to use phylogenies to determine the direction of shifts in pollination syndromes, Weller and Sakai (1999) report three studies in which the evolution of hummingbird pollination has been investigated (McDade 1992;Bruneau 1997;Hodges 1997). McDade (1992) found that long, decurved corollas associated with pollination by specialist hermit hummingbirds are ancestral to short corollas associated with pollination by generalist hummingbirds. In the Aphelandra pulcherrima complex, short corollas were hypothesized to have arisen twice. Hummingbird pollination in Erythrina was estimated by Bruneau (1997) to have arisen at least four times from ancestral passerine pollination. Aquilegia species that are pollinated by hummingbirds were hypothesized by Hodges (1997) to be derived from taxa with less-specialized, open, radiate corollas. O'Kane and Schaal (1998) used a molecular phylogeny to infer that hummingbird pollination in Lopezia sect. Jehlia was secondarily regained after a switch to fly pollination. Givnish et al. (2000) also used molecular data to infer the relatively recent evolution of hummingbird pollination from bee-pollinated ancestors in Rapateaceae in the western Guyana Shield. Hummingbird pollination was hypothesized to have arisen three times independ...

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ITS Base Sequence Phylogeny in Bidens (Asteraceae): Evidence for the Continental Relatives of Hawaiian and Marquesan Bidens

Cited by 67 publications

References 28 publications

How old is the Hawaiian biota? Geology and phylogeny suggest recent divergence

How old is the Hawaiian biota? Geology and phylogeny suggest recent divergence

Biogeography of the fauna of French Polynesia: diversification within and between a series of hot spot archipelagos

Aflp Phylogeny of Mimulus Section Erythranthe and the Evolution of Hummingbird Pollination

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