Phylogeny and Classification of the Haemodoraceae

Simpson, Michael G.

doi:10.2307/2399670

Cited by 65 publications

(95 citation statements)

References 39 publications

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“…A number of biogeographical analyses of particular monocot groups have already been published (Linder 1987;Seberg 1988;Simpson 1990;Conran 1995;Givnish et al 1999;Vinnersten and Bremer 2001;Bremer 2002). Several of these studies indicate that commelinid groups, Commelinales and Poales in particular, evolved in the Southern Hemisphere, corroborating earlier hypotheses by Raven and Axelrod (1974).…”

Section: Introductionsupporting

confidence: 60%

Gondwanan Origin of Major Monocot Groups Inferred from Dispersal-Vicariance Analysis

Bremer¹,

Janßen²

2006

aliso

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Historical biogeography of major monocot groups was investigated by biogeographical analysis of a dated phylogeny including 79 of the 81 monocot families using the Angiosperm Phylogeny Group II (APG II) classification. Five major areas were used to describe the family distributions: Eurasia, North America, South America, Africa including Madagascar, and Australasia including New Guinea, New Caledonia, and New Zealand. In order to investigate the possible correspondence with continental breakup, the tree with its terminal distributions was fitted to the geological area cladogram «Eurasia, North America), (Africa, (South America, Australasia») and to alternative area cladograms using the TreeFitter program. The results indicated that monocot evolution is related to the comparatively late (Eocene) connection (via Antarctica) and break up of South America and Australasia, but not to the much older connections and separations of the other areas. The family phylogeny and distributions were also subjected to dispersal-vicariance analysis using the DIVA program. A prevalence of Australasia and South America among the DIVA optimizations inside core monocots (i.e., monocots excluding Acarus and Alismatales), and especially so in Liliales, Asparagales, and at deep nodes in the core monocot and commelinid phylogeny, points to a South Gondwanan origin for those major groups; South Gondwana comprises South America (at least southern South America), Antarctica, and Australasia. Africa and the Northern Hemisphere were presumably not parts of the ancestral area for core monocots and commelinids.

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Section: Introductionsupporting

confidence: 60%

Gondwanan Origin of Major Monocot Groups Inferred from Dispersal-Vicariance Analysis

Bremer¹,

Janßen²

2006

aliso

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“…In general, this meant choosing a published most parsimonious (MP) tree, as opposed to a consensus tree. Fourth, we did not include phylogenies in which there were no deviations from hermaphroditism (e.g., Haemodoraceae : Simpson 1990; Pontederiaceae: Kohn et al 1996;Triticeae: Mason-Gamer and Kellogg 1996). Finally, monophyletic groups were pruned from less inclusive phylogenies and grafted into more inclusive phylogenies in cases where the placement of groups was unambiguous and where grafting increased the number of Figure 2 illustrates the relationships between clades in the composite tree, which is available from G. Weiblen.…”

Section: Tree Assemblymentioning

confidence: 99%

Phylogenetic Analysis of Dioecy in Monocotyledons

Weiblen

Oyama

Donoghue

2000

The American Naturalist

144

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Surveys of plant breeding systems in angiosperm families have shown a significant association between monoecy and dioecy, and researchers have proposed that dioecy has tended to evolve from monoecy. We evaluated this hypothesis in the context of a phylogeny of 918 monocotyledons assembled from 19 published trees. Binary and multistate breeding system characters were mapped onto a set of composite trees, and alternative models of character change were compared using maximum likelihood. Over a range of tree topologies and optimizations, we found three to eight times as many changes from hermaphroditism to dioecy as we did from monoecy to dioecy. Also, the rate at which monoecy gave rise to dioecy was not significantly higher than the rate at which hermaphroditism gave rise to dioecy. Our analysis implies that the correlation of monoecy and dioecy in angiosperm families does not reflect a preponderance of changes from monoecy to dioecy. Instead, we postulate that the family-level correlation results from the clustering of breeding system changes in the underlying phylogeny. Our results suggest renewed attention to modeling the transition from hermaphroditism to dioecy, possibly involving transient intermediates such as gynodioecy.

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“…Twelve species of Kangaroo Paws are currently recognized (Hopper 1987); 11 in the genus Anigozanthos and a single species in the genus Macropidia (M. fuliginosa). The taxonomy of Kangaroo Paws is problematic and has been the subject of numerous studies (Anderberg and Eldenäs 1991;Hopper 1980;Hopper and Campbell 1977;Hopper et al 1999Hopper et al , 2009Simpson 1990). In particular, the validity of Macropidia as a monotypic genus has been discussed in detail, with some authors supporting its monotypic status (Hopper 1980;Hopper and Campbell 1977;Hopper et al 1999Hopper et al , 2009) while others have argued in favour of it being lumped within Anigozanthos (Anderberg and Eldenäs 1991;Simpson 1990).…”

Section: Study Systemmentioning

confidence: 99%

“…Given the taxonomic uncertainties within this group (Anderberg and Eldenäs 1991;Hopper 1978Hopper , 1980Simpson 1990), the use of molecular systematics is particularly relevant here. While previous molecular phylogenies of the Haemodoraceae supported Macropidia as the monotypic sister group of Anigozanthos (Hopper et al 1999(Hopper et al , 2009), a molecular phylogeny that includes all Kangaroo Paw species would render indisputable support for the placement of Macropidia.…”

Section: Kangaroo Paw Taxonomymentioning

confidence: 99%

Molecular systematics and ecology of invasive Kangaroo Paws in South Africa: management implications for a horticulturally important genus

et al. 2010

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Most legislation pertaining to non-native organisms is implicitly focussed at the individual species level. However, in some cases interspecific hybrids can be more invasive than any of the parent species. This is problematic for policy makers, and for horticulturists developing or trading in new ornamental cultivars. We explore these issues in the context of the need to manage naturalized populations of Kangaroo Paws (Anigozanthos species) in South Africa. Self-sustaining, dense populations of naturalized Kangaroo Paws occur at several localities and are highly attractive to local nectar-feeding birds. The populations show high levels of seed set with or without bird pollination. Given the known propensity of Kangaroo Paws to hybridise in their native range in Australia, and confusion about the species identity of naturalized populations in South Africa, it was essential to resolve some key taxonomic issues in the group. We constructed the first molecular phylogeny for all species of the Kangaroo Paw group (genera Anigozanthos and Macropidia; family Haemodoraceae). As previously determined by taxonomists working on herbarium specimens, naturalized populations were identified as A. flavidus. In addition, we also identified a second species, A. rufus. Relative genome size estimates for Anigozanthos species

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Phylogeny and Classification of the Haemodoraceae

Cited by 65 publications

References 39 publications

Gondwanan Origin of Major Monocot Groups Inferred from Dispersal-Vicariance Analysis

Gondwanan Origin of Major Monocot Groups Inferred from Dispersal-Vicariance Analysis

Phylogenetic Analysis of Dioecy in Monocotyledons

Molecular systematics and ecology of invasive Kangaroo Paws in South Africa: management implications for a horticulturally important genus

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