Phylogeny and age of diversification of the planitibia species group of the Hawaiian Drosophila

Bonacum, James; O’Grady, Patrick M.; Kambysellis, Michael P.; DeSalle, Rob

doi:10.1016/j.ympev.2005.03.008

Cited by 51 publications

(62 citation statements)

References 31 publications

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“…It is clear that the history of colonization and diversification of Hawaiian Drosophilidae is far more complicated than the previously suggested single colonization and subsequent diversification in situ (O'Grady & Zilversmit 2004;Bonacum et al 2005). Molecular phylogenetic studies that more thoroughly sample the diversity of species present in the islands, as well as multiple continental relatives, have given a much richer picture of the evolution of this group.…”

Section: Discussionmentioning

confidence: 99%

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Out of Hawaii: the origin and biogeography of the genus Scaptomyza (Diptera: Drosophilidae)

2008

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The Hawaiian Archipelago is the most isolated island system on the planet and has been the subject of evolutionary research for over a century. The largest radiation of species in Hawaii is the Hawaiian Drosophilidae, a group of approximately 1000 species. Dispersal to isolated island systems like Hawaii is rare and the resultant flora and fauna shows high disharmony with mainland communities. The possibility that some lineages may have originated in Hawaii and subsequently 'escaped' to diversify on continental landmasses is expected to be rarer still. We present phylogenetic analysis of 134 partially sequenced mitochondrial genomes of Drosophilidae (approx. 1.3 Mb of sequence total) to address major aspects of adaptive radiation and dispersal in Hawaii. We show that the genus Scaptomyza, a group that accounts for approximately one-third of the species-level diversity of Drosophilidae in the Hawaiian Islands, originated in Hawaii, diversified there, and subsequently colonized a number of island and continental landmasses elsewhere on the globe. We propose that a combination of small body size, rapid generation time and unique ecological and physiological adaptations have allowed this genus to effectively disperse and diversify.

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Section: Discussionmentioning

confidence: 99%

“…Polymerase chain reaction conditions were standard for mitochondrial DNA (e.g. Bonacum et al 2005). Twenty-six primer pairs (Bonacum et al 2001), some of which were overlapping, were used to amplify roughly 10 kb per taxon.…”

Section: Methodsmentioning

confidence: 99%

Out of Hawaii: the origin and biogeography of the genus Scaptomyza (Diptera: Drosophilidae)

2008

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“…Most remarkably, the terrestrial species on arid Necker Island is strongly supported as the basal member of the H. saccophora species group, but well within the genus as a whole (figure 2). This suggests that the H. saccophora lineage has been extant at least as long as 11-Ma Necker Island, and that the ancestor of Hyposmocoma may have arrived in the Hawaiian Islands even earlier, a pattern supported in other groups of endemic insects (Jordan et al 2003;Bonacum et al 2005). Furthermore, the strictly terrestrial nature of Necker Island's cone-cased Hyposmocoma suggests that either aquatic adaptations first occurred when the clade colonized Kauai or the Necker species was able to secondarily revert to a dry terrestrial existence.…”

Section: Discussionmentioning

confidence: 89%

“…Alternatively, is the pattern of diversification more complex and inconsistent with this colonization pattern, suggesting repeated independent derivation of the cone case and aquatic habit as part of separate radiations (Gillespie et al 1997;Hormiga et al 2003)? A progression rule pattern might indicate that Hyposmocoma as a genus is older than the current main islands, as has been suggested for Drosophila (Bonacum et al 2005) and Megalagrion damselflies (Jordan et al 2003), but that is generally thought to be a rare phenomenon with most extant lineages colonizing the archipelago after the current main islands arose (Price & Clague 2002). Within Hyposmocoma, are these cone-cased species monophyletic or does the cone case type reoccur in paraphyly with other case shape lineages?…”

Section: Introductionmentioning

confidence: 94%

Phylogeography and ecology of an endemic radiation of Hawaiian aquatic case-bearing moths (Hyposmocoma: Cosmopterigidae)

Rubinoff

2008

Phil. Trans. R. Soc. B

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The endemic moth genus Hyposmocoma (Lepidoptera: Cosmopterigidae) may be one of the most speciose and ecologically diverse genera in Hawaii. Among this diversity is the Hyposmocoma saccophora clade with previously unrecorded aquatic larvae. I present a molecular phylogeny based on 773 base pairs (bp) of the mitochondrial gene cytochrome c oxidase subunit I and 762 bp of the nuclear gene elongation factor 1-a. Topologies were constructed from data using maximum-parsimony, maximum-likelihood and Bayesian search criteria. Results strongly support the monophyly of the H. saccophora clade and the monophyly of the genus Hyposmocoma. The H. saccophora clade has single-island endemic species on Oahu, Molokai and West Maui. By contrast, there are three species endemic to Kauai, two being sympatric. The H. saccophora clade appears to follow the progression rule, with more basal species on older islands, including the most basal species on 11 Myr-old Necker Island, one of the Northwestern Hawaiian Islands. Aquatic behaviour either evolved recently in the species on the main Hawaiian Islands or was secondarily lost on the arid northwestern Necker Island. The phylogeny suggests that Hyposmocoma is older than any of the current main islands, which may, in part, explain Hyposmocoma's remarkable diversity.

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“…Diversification appears to have been predominantly among islands rather than within islands. Among the Hawaiian drosophilids, molecular analysis of the Drosophila planitibia group based on two mitochondrial and four nuclear markers (Bonacum et al 2005) suggested an origin 6.1 Ma on an island older than Kauai, but with major diversification beginning on Kauai and subsequent colonization and diversification occurring as younger islands became available. While the overall pattern follows the progression rule, speciation has been both within and between islands, some back colonizations have occurred, and the patterns of diversification on the Maui Nui group (the combined islands of Molokai, Maui, Lanai and Kahoolawe, which have for most of their history been joined into a single island, e.g.…”

Section: Phylogenetics and Biogeographymentioning

confidence: 99%

Molecular biogeography and diversification of the endemic terrestrial fauna of the Hawaiian Islands

Cowie

Holland

2008

Phil. Trans. R. Soc. B

109

106

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Oceanic islands have played a central role in biogeography and evolutionary biology. Here, we review molecular studies of the endemic terrestrial fauna of the Hawaiian archipelago. For some groups, monophyly and presumed single origin of the Hawaiian radiations have been confirmed (achatinelline tree snails, drepanidine honeycreepers, drosophilid flies, Havaika spiders, Hylaeus bees, Laupala crickets). Other radiations are derived from multiple colonizations (Tetragnatha and Theridion spiders, succineid snails, possibly Dicranomyia crane flies, Porzana rails). The geographic origins of many invertebrate groups remain obscure, largely because of inadequate sampling of possible source regions. Those of vertebrates are better known, probably because few lineages have radiated, diversity is far lower and morphological taxonomy permits identification of probable source regions. Most birds, and the bat, have New World origins. Within the archipelago, most radiations follow, to some degree, a progression rule pattern, speciating as they colonize newer from older islands sequentially, although speciation often also occurs within islands. Most invertebrates are single-island endemics. However, among multi-island species studied, complex patterns of diversification are exhibited, reflecting heightened dispersal potential (succineids, Dicranomyia). Instances of Hawaiian taxa colonizing other regions are being discovered (Scaptomyza flies, succineids). Taxonomy has also been elucidated by molecular studies (Achatinella snails, drosophilids). While molecular studies on Hawaiian fauna have burgeoned since the mid-1990s, much remains unknown. Yet the Hawaiian fauna is in peril: more than 70 per cent of the birds and possibly 90 per cent of the snails are extinct. Conservation is imperative if this unique fauna is to continue shedding light on profound evolutionary and biogeographic questions.

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Phylogeny and age of diversification of the planitibia species group of the Hawaiian Drosophila

Cited by 51 publications

References 31 publications

Out of Hawaii: the origin and biogeography of the genus Scaptomyza (Diptera: Drosophilidae)

Out of Hawaii: the origin and biogeography of the genus Scaptomyza (Diptera: Drosophilidae)

Phylogeography and ecology of an endemic radiation of Hawaiian aquatic case-bearing moths (Hyposmocoma: Cosmopterigidae)

Molecular biogeography and diversification of the endemic terrestrial fauna of the Hawaiian Islands

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