Phylogeny of Coreopsideae (Asteraceae) using ITS sequences suggests lability in reproductive characters

Kimball, Rebecca T.; Crawford, Daniel J.

doi:10.1016/j.ympev.2004.04.022

Cited by 46 publications

(66 citation statements)

References 26 publications

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“…Although incongruence between morphological and molecular results was initially considered a negative homoplasious result, it has actually opened a new window in terms of understanding the evolution of morphological characters. In particular, morphological characters that appear multiple times when mapped onto molecular phylogenies have been associated with character lability (Jousselin et al 2004, Kimball & Crawford 2004. Silvertown et al (2006) defined evolutive labile characters as heritable traits that can vary freely among the tips of a given phylogeny.…”

Section: Introductionmentioning

confidence: 99%

“…Although Silvertown et al (2006) defined trait lability in an ecological context, their argument can be applied in a taxonomical context with non-functional characters used for the identification and classification of species. Character lability in a taxonomical context has usually been associated with character homoplasy as either putative convergence or parallelism (Kimball & Crawford 2004). It can also be linked to character reacquisition violating Dollo's Law (Collin & Miglietta 2008), where complex characters that have been lost cannot be reacquired.…”

Section: Introductionmentioning

confidence: 99%

“…Trait lability has been reported in a number of land organisms such as plants (Kimball & Crawford 2004, Ogburn & Edwards 2009), mosses (Shaw & Allen 2000), mammals (Sánchez-Villagra & Williams 1998), wasps (Jousselin et al 2004) and amphibians (e.g. salamanders, Chippindale et al 2004, Mueller et al 2004.…”

Section: Introductionmentioning

confidence: 99%

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Character lability in deep-sea bamboo corals (Octocorallia, Isididae, Keratoisidinae)

Dueñas¹,

Sánchez²

2009

Mar. Ecol. Prog. Ser.

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Morphological traits that appear multiple times when mapped onto molecular phylogenies have been associated with character lability. In an ecological context, functional characters, if labile, could confer advantages for adaptation to specific habitats. Bamboo corals are long-lived, deep-sea octocorals characterized by an obvious modularity, which affords diverse branching morphologies in the Keratoisidinae subfamily. We reconstructed molecular phylogenies using 16S (mitochondrial) and ITS2 (nuclear) ribosomal DNA, and obtained 39 ITS2 and 22 16S sequences from 22 different specimens. The molecular topologies showed Keratoisidinae genera as polyphyletic. Twelve morphological characters were chosen to make the ancestral character reconstruction, none of which exhibited character states forming monophyletic groups when mapped onto molecular phylogenies. The different character states appeared as having been gained and lost multiple times. Modular organisms such as bamboo corals could have higher character evolvability than unitary organisms. Complexity arising from simple body plans is a typical characteristic in most modular organisms, such as plants and colonial marine invertebrates. However, bamboo corals may also exhibit phenotypic plasticity associated with continuous characters, given that they can respond to extrinsic controls. Our results also have direct repercussions on Isididae taxonomy, since morphological characters have been used for their classification. Consequently, we suggest that the current taxonomy of the group is re-evaluated and that the different mechanisms regulating modularity and character evolution in bamboo corals are explored.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Character lability in deep-sea bamboo corals (Octocorallia, Isididae, Keratoisidinae)

Dueñas¹,

Sánchez²

2009

Mar. Ecol. Prog. Ser.

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“…of subtribe Flaveriinae and in Pectis of subtribe Pectidinae). The C 4 genera in Chrysanthellinae form a monophyletic group and thus are thought to represent a single acquisition of the syndrome (Kimball & Crawford, 2004). However, based on phylogenetic analysis, C 4 photosynthesis is thought to have multiple origins in Flaveria (McKown et al, 2005).…”

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confidence: 99%

Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Hansen¹,

Spicer²,

Patterson³

2009

Systematic Botany

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“…Phylogenetic investigations on the Coreopsideae (Kim et al, 1999;Crawford et al, 2001Crawford et al, , 2009Kimball & Crawford, 2004;Crawford & Mort, 2005;Mort et al, 2008) …”

Section: Asteraceaementioning

confidence: 99%

Nomenclatural novelties for the Euro+Med flora

Banfi¹,

Galasso²,

Bartolucci

2017

Nat Hist Sci

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-Today's plant phylogeny more and more deals with ranks from the genus down, so changes in current taxonomy and nomenclature are frequently requested. For this reason, referring to the Euro+Med flora, we take here into account 20 taxa and recover the following forgotten nomenclatural combinations: Riassunto -Combinazioni nuove, combinazioni rivalutate e nomi nuovi per la flora d'Italia e d'Europa.Gli odierni studi filogenetici in campo botanico stanno ponendo crescente attenzione ai taxa di rango generico e di rango inferiore. Da ciò nasce la frequente necessità di modificare i modelli sistematici, i quali richiedono a loro volta nuovi assestamenti della tassonomia corrente e della nomenclatura. Il presente contributo prende in considerazione 20 taxa di interesse europeo e mediterraneo per i quali 1) vengono recuperate 4 vecchie combinazioni: Bidens atrosanguinea (Hook.) Regel, B. formosa (Bonato) Sch.Bip., B. sulphurea (Cav.) Sch.Bip. e B. tinctoria (Nutt.) Baill. ex Daydon; 2) sono istituiti 3 nomi nuovi: Agrostis linkii

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Phylogeny of Coreopsideae (Asteraceae) using ITS sequences suggests lability in reproductive characters

Cited by 46 publications

References 26 publications

Character lability in deep-sea bamboo corals (Octocorallia, Isididae, Keratoisidinae)

Character lability in deep-sea bamboo corals (Octocorallia, Isididae, Keratoisidinae)

Phylogenetic Relationships Between and within Phacelia Sections Whitlavia and Gymnobythus (Boraginaceae)

Nomenclatural novelties for the Euro+Med flora

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