Reversing opinions on Dollo’s Law

Collin, Rachel; Miglietta, Maria Pia

doi:10.1016/j.tree.2008.06.013

Cited by 161 publications

(175 citation statements)

References 63 publications

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“…Therefore, Dulichia and its allied genera have been considered to form a sister group of the Caprellidea on the basis of morphological characters (Laubitz 1979;Takeuchi 1993), but our previous molecular phylogenetic study did not support that idea and suggested that the reduction of pereopods might have occurred independently in the Caprellidea and Dulichia (Ito et al 2008). On the other hand, several recent phylogenetic or developmental studies claimed that reacquisition of several complex characters might have occurred, such as the wings of stick insects, digits of lizards, feeding larval stage of marine snails (Collin et al 2007;Collin and Miglietta 2008;Kohlsdorf and Wagner 2006;Whiting et al 2003). Because caprellids have fully developed first, second, and fifth to seventh pereopods, it is not improbable that the gene regulation system that produces pereopods could have been re-recruited to the third and fourth pereopods in the Phtisicidae.…”

Section: Regaining or Multiple Losses Of Third And Fourth Pereopods Amentioning

confidence: 88%

Complicated evolution of the caprellid (Crustacea: Malacostraca: Peracarida: Amphipoda) body plan, reacquisition or multiple losses of the thoracic limbs and pleons

et al. 2011

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The Caprellidea (Crustacea) have undergone an interesting morphological evolution from their ancestral gammarid-like form. Although most caprellid families have markedly reduced third and fourth pereopods (the walking thoracic limbs) and pleons (the posterior body parts), one family, Caprogammaridae, has developed pleon with swimming appendages (pleopods), whereas another family, Phtisicidae, possesses well-developed functional third and fourth pereopods. The unique character status of these families implies that there has been reacquisition or multiple losses of both pereopods and the pleon within the Caprellidea lineages. Although the Caprellidea are fascinating animals for the study of morphological evolution, the phylogenetic relationships among the Caprellidea are poorly understood. One obstacle to studying the evolution of the Caprellidea is the difficulty collecting samples of caprogammarid species. In this study, we obtained live samples of a Caprogammaridae species, and confirmed that its pleon and pleopods could perform similar locomotive functions and swimming movements as observed in gammarids. From the phylogenetic analyses on 18S ribosomal RNA gene sequences, we identified three distinct clades of Caprellidea.Ancestral state reconstruction based on the obtained phylogeny suggested that once lost, the third and fourth pereopods were regained in the Phtisicidae, while the pleon was regained in the Caprogammaridae, while we could not exclude the possibility of independent losses. In either case, the caprellid lineage underwent a quite complicated morphological evolution, and possibly the Caprellidea may be an exception to Dollo's law.

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Section: Regaining or Multiple Losses Of Third And Fourth Pereopods Amentioning

confidence: 88%

Complicated evolution of the caprellid (Crustacea: Malacostraca: Peracarida: Amphipoda) body plan, reacquisition or multiple losses of the thoracic limbs and pleons

et al. 2011

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“…Astyanax mexicanus | transgenic T hat complex traits do not reappear once lost is a macroevolutionary pattern of sufficient generality to have been proposed independently as "Dollo's Law" (1,2) and the "Law of Loss" (3). This pattern is frequently interpreted as evidence of a constraint on adaptive evolution resulting from the loss of genetic information required for trait development (2,4,5).…”

mentioning

confidence: 99%

“…This pattern is frequently interpreted as evidence of a constraint on adaptive evolution resulting from the loss of genetic information required for trait development (2,4,5). Such information loss in the form of pseudogene formation has been documented (5), but most examples involve traits with relatively direct connections of genotype to phenotype, such as floral pigment (6) and hemoglobin (7).…”

mentioning

confidence: 99%

Selection and constraint underlie irreversibility of tooth loss in cypriniform fishes

Aigler

Jandzík

Hatta

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

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The apparent irreversibility of the loss of complex traits in evolution (Dollo's Law) has been explained either by constraints on generating the lost traits or the complexity of selection required for their return. Distinguishing between these explanations is challenging, however, and little is known about the specific nature of potential constraints. We investigated the mechanisms underlying the irreversibility of trait loss using reduction of dentition in cypriniform fishes, a lineage that includes the zebrafish (Danio rerio) as a model. Teeth were lost from the mouth and upper pharynx in this group at least 50 million y ago and retained only in the lower pharynx. We identified regional loss of expression of the Ectodysplasin (Eda) signaling ligand as a likely cause of dentition reduction. In addition, we found that overexpression of this gene in the zebrafish is sufficient to restore teeth to the upper pharynx but not to the mouth. Because both regions are competent to respond to Eda signaling with transcriptional output, the likely constraint on the reappearance of oral teeth is the alteration of multiple genetic pathways required for tooth development. The upper pharyngeal teeth are fully formed, but do not exhibit the ancestral relationship to other pharyngeal structures, suggesting that they would not be favored by selection. Our results illustrate an underlying commonality between constraint and selection as explanations for the irreversibility of trait loss; multiple genetic changes would be required to restore teeth themselves to the oral region and optimally functioning ones to the upper pharynx.Astyanax mexicanus | transgenic

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“…The Dollo reconstruction is quite simple and fast to compute, again by dynamic programming, and is still widely used to infer ancestral states in phylogenetic studies, even if the irreversibility hypothesis is still controversial [5,1].…”

Section: Louis Dollo (1893)mentioning

confidence: 99%

“…In particular there is no maximum parsimonious reconstruction assigning 1 to the right child of the root node (with 1-threshold 1 5 ) without assigning the same state to the left child (with 1-threshold 1 3 ) in the tree of Figure 6, unless we relax the assumption that the cost parameters do not change along the tree.…”

Section: Louis Dollo (1893)mentioning

confidence: 99%

Parametric Maximum Parsimonious Reconstruction on Trees

Didier

2010

Bull Math Biol

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We give a formal study of the relationships between the transition cost parameters and the generalized maximum parsimonious reconstructions of unknown (ancestral) binary character states {0, 1} over a phylogenetic tree. As a main result, we show there are two thresholds λ 1 n and λ 0 n , generally confounded, associated to each node n of the phylogenetic tree and such that there exists a maximum parsimonious reconstruction associating state 1 to n (resp. state 0 to n) if the ratio "10-cost"/"01-cost" is smaller than λ 1 n (resp. greater than λ 0 n ). We propose a dynamic programming algorithm computing these thresholds in a time quadratic with the size of tree.We briefly illustrated some possible applications of this work over a biological dataset. In particular, the thresholds provide a natural way to quantify the degree of support for states reconstructed as well as to determine what kind of evolutionary assumptions in terms of costs are necessary to a given reconstruction.

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Reversing opinions on Dollo’s Law

Cited by 161 publications

References 63 publications

Complicated evolution of the caprellid (Crustacea: Malacostraca: Peracarida: Amphipoda) body plan, reacquisition or multiple losses of the thoracic limbs and pleons

Complicated evolution of the caprellid (Crustacea: Malacostraca: Peracarida: Amphipoda) body plan, reacquisition or multiple losses of the thoracic limbs and pleons

Selection and constraint underlie irreversibility of tooth loss in cypriniform fishes

Parametric Maximum Parsimonious Reconstruction on Trees

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