Phenetic Relationships Among Populations of Podarcis sicula and P. melisellensis (Sauria: Lacertidae) from Islands in the Adriatic Sea

Clover, Robert C.

doi:10.2307/2412583

Cited by 11 publications

(12 citation statements)

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“…They point rather to a consideration of natural selection as expressed by several authors on lizard populations from small islands (Clover, 1979;Thorpe and Malhotra, 1996;Thorpe and Stenson, 2003). However, we should not forget the relevance of habitat to induct morphological changes in lacertids (Vanhooydonck et al, 2000;Van Damme and Vanhooydonck, 2002;Vanhooydonck and Van Damme, 2003;Verwaijen et al, 2002;Wei-Guo, 2006).…”

Section: Discussionmentioning

confidence: 97%

“…Less than two decades have passed since attention was focused on P. sicula's intraspecific morphological variability (Arnold, 1993;Lanza et al, 1993), enzymatic polymorphism (Gorman et al, 1975;Clover, 1979;Capula et al, 1988Capula et al, , 1990, chromosomes and satellite DNA (Cardone et al, 1990), microsatellites (Fulgione et al, 2005), and mitochondrial genes (Oliverio et al, 1998(Oliverio et al, , 2000Podnar et al, 2005). So far, 48 subspecies of P. sicula have been described, almost 50% of which have been identified within insular populations (Corti and Lo Cascio, 2002;Corti, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Morphological Differentiation and Genetic Structure in Island Lizard Populations

Fulgione¹,

Guglielmi²,

Odierna³

et al. 2008

Zoological Science

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Only some island populations of Podarcis sicula are hyperchromatic. The study of this phenomenon and its relationship with the lizards of the mainland and other islands, exhibiting a "normal" coloration, provides useful hints in our understanding of evolutionary mechanisms that have created the observed morphological variation. We performed a comparative morphological and genetic analysis of a hyperchromatic lizard population from Licosa Island, and compared the data with that obtained from normal-colored lizard populations both from Ustica and Cirella islands in the Tyrrhenian sea and from nearby mainland Italy. Morphological and microsatellite gene differentiation in the hyperchromatic Licosa population appears to have been much more rapid than the molecular evolution of the mtDNA. We discuss herein that the comparison of hyperchromatism and other types of morphological variation with molecular data in island populations of lizards may provide useful hints as to evolutionary mechanisms.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Morphological Differentiation and Genetic Structure in Island Lizard Populations

Fulgione¹,

Guglielmi²,

Odierna³

et al. 2008

Zoological Science

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“…This will be based on my analysis of the population systematics of the N . natrzx species complex and my reanalysis of Clover's (1979) data on the wall lizards Podarcis sicula and P. melisellensis.…”

mentioning

confidence: 99%

“…Two exceptions to this rule are the grass snake (or ringed snake) Natrix natrk (Thorpe, 1973(Thorpe, , 1975a(Thorpe, , b, 1979(Thorpe, , 1980a, the wall lizards Podarcis species (Clover, 1979;Gorman, Soute, Yang & Nevo, 1975).…”

mentioning

confidence: 99%

“…The more recent methodological advances such as the investigation of isozymes (by electrophoresis), cytotaxonomy and multivariate analysis of morphological characters have not been applied to a wide range of European reptiles. Two exceptions to this rule are the grass snake (or ringed snake) Natrix natrk (Thorpe, 1973(Thorpe, , 1975a(Thorpe, , b, 1979(Thorpe, , 1980a, the wall lizards Podarcis species (Clover, 1979;Gorman, Soute, Yang & Nevo, 1975).…”

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confidence: 99%

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Microevolution and taxonomy of European reptiles with particular reference to the grass snake Natrix natrix and the wall lizards Podarcis sicula and P. melisellensis

Thorpe

1980

Biological Journal of the Linnean Society

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The grass snake Natrix natrix and the wall lizards Podarcis simla and P. vre[irrll~n~is are used as examples to compare the procedure and achievements of the conventional approach to naming subspecies with the use of inultivariate morphometrics to investigate racial dilTerrntiation.The conventional procedure, which has changed little over the last 50 yrars, fails to take into account the appropriate evolutionary facts or refer to any abstractcd levels of divergence necessary for subspecific recognition. Consequently, the patterns of population diflrentiation are obscured by the recognition o f a large number of rather meaningless subspecies. Thew is a tendency t o section dines into artificial categories and arbitrarily delimit subspecies by physiographic li.atures.On the other hand, the use of multivariate morphometrics reveals the patterns of population dillerentiation which can be related to geological events and patterns ofdifferentiation in other species and species groups. The nature of 'hybrid' zones and population differentiation enables the relative importance of evolutionary forces such as gene flow, selection and genetic drift to be discussed and provides evidence concerning speciation mechanisms. These techniques also contribute to the discussion regarding the nature of species and provide abstracted and operational criteria for taxonomic decisions.The difference between the results of multivariate analysis and the conventional approach cannot be explained solely on the basis ofchoice of characters. Some of the advantagea and disadvantagcs of using multivariate morphometrics, as opposed to other modern techniques, lo1 investigating racial affinities are discussed.

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Factors affecting the character stability of classifications

Burgman

Sokal

1989

Pl Syst Evol

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Phenetic Relationships Among Populations of Podarcis sicula and P. melisellensis (Sauria: Lacertidae) from Islands in the Adriatic Sea

Cited by 11 publications

References 0 publications

Morphological Differentiation and Genetic Structure in Island Lizard Populations

Morphological Differentiation and Genetic Structure in Island Lizard Populations

Microevolution and taxonomy of European reptiles with particular reference to the grass snake Natrix natrix and the wall lizards Podarcis sicula and P. melisellensis

Factors affecting the character stability of classifications

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