MOSAIC DOMINANCE IN THE INHERITANCE OF THE COLOUR PATTERNS OF <i>COELOPHORA INAEQUALIS</i> (F.) (COLEOPTERA: COCCINELLIDAE)

Houston, K. J.

doi:10.1111/j.1440-6055.1979.tb00810.x

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Here the size of the dark black spots regulates the body temperature. Similar demographic distribution and colour morph variation is seen in Coelophora inaequalis, Harmonia axyridis and Oreina sulcata [63]–[65]. The colour variation within these species is assumed to be driven by solar UV- β radiation and interestingly solar UV- β radiation normally increases with increasing altitude.…”

Section: Discussionmentioning

confidence: 77%

Multiple Origins of Elytral Reticulation Modifications in the West Palearctic Agabus bipustulatus Complex (Coleoptera, Dytiscidae)

Drotz¹,

Brodin

Nilsson

2010

PLoS ONE

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The Agabus bipustulatus complex includes one of Europe's most widely distributed and common diving beetles. This complex, which is known for its large morphological variation, has a complex demographic and altitudinal variation in elytral reticulation. The various depth of the reticulation imprint, both in smaller and larger meshes, results in both mat and shiny individuals, as well as intermediate forms. The West Palearctic lowland is inhabited by a sexually dimorphic form, with shiny males and mat females. In mountain regions, shiny individuals of both sexes are found intermixed with mat individuals or in pure populations in central and southern areas, whereas pure populations of mat individuals are exclusively found in the northern region at high altitude. Sexual selection is proposed as a driving force in shaping this variation. However, the occurrence of different types of reticulation in both sexes and disjunct geographical distribution patterns suggest an additional function of the reticulation. Here we investigate the phylogeographical history, genetic structure and reticulation variation of several named forms within the Agabus bipustulatus complex including A. nevadensis. The molecular analyses recognised several well-supported clades within the complex. Several of the named forms had two or more independent origins. Few south European populations were uniform in reticulation patterns, and the males were found to display large variation. Reticulation diversity and population genetic variability were clearly correlated to altitude, but no genetic differences were detected among populations with mixed or homogenous forms. Observed reduction in secondary reticulation in female and increased variance in male at high altitude in South Europe may be explained by the occurrence of an additional selective force, beside sexual selection. The combined effect of these selective processes is here demonstrated in an extreme case to generate isolation barriers between populations at high altitudes. Here we discuss this selective force in relation to thermal selection.

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Section: Discussionmentioning

confidence: 77%

Multiple Origins of Elytral Reticulation Modifications in the West Palearctic Agabus bipustulatus Complex (Coleoptera, Dytiscidae)

Drotz¹,

Brodin

Nilsson

2010

PLoS ONE

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“…The variation in colour pattern and wide distribution of inaequalis led to its being redescribed as new on a large number of occasions. As far as the Australian fauna is concerned, early observations by Crotch (1874) and subsequent work by , and Houston (1979), have demonstrated the ways in which the colour patterns are produced and have firmly established all the relevant synonymies. Iablokoff-Khnzorian (1982, pp.…”

Section: Commentsmentioning

confidence: 99%

“…For Australia, label data from specimens examined has yielded many records of aphid predation, but only four including identifications; Toxoptera citricidis (Kirkaldy), Pentalonia nigronervosa Coquerel, Rhopalosiphum padi (Linnaeus) and 'Chermes' sp. In the laboratory, inaequalis has been reared on a number of aphid species by , Houston (1979) and Houston and Hales (1980). (Montrouzier) (Montrouzier); Crotch, 1874, p. 152;Fauvel, 1903, p. 327;Korschefsky, 1932, p. 294;Chazeau, 1978, p. 63.…”

Section: Biologymentioning

confidence: 99%

A revision of the Australian Coccinellidae (Coleoptera). Part 1. Subfamily Coccinellinae

Pope¹

1988

Invert. Systematics

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The first part of a revision of Australian Coccinellidae (Epilachninae excepted) deals with the subfamily Coccinellinae, which now includes 14 genera and 32 species. The Australian coccinellid fauna is examined in relation to that of the world as a whole and the history of its role in the field of biological control briefly reviewed. Keys to subfamilies, genera and species are given. The Coccinellinae and its included Australian genera and species are defined and available data concerning distribution and biology presented. Two new species, Illeis (Leptothea) flava and Micraspis confusa are described. Two new specific synonymies, [Orcus mollipes Olliff = Menochilus sexmaculatus (Fabricius) and Archegleis crotchi Iablokoff-Khnzorian = A. delta (Weise)], are proposed. Lemnia Mulsant [Australian species mulsanti (Montrouzier) and jansoni (Crotch)] is re-synonymised with Coelophora Mulsant and Synia Mulsant (renamed Synona, nom. nov.) is restored to full generic status. Micraspis frenata (Erichson) is resurrected as a good species, Coelophora astrolabiana Weise transferred to Phrynocaria Timberlake, and Harmonia duplicata (Crotch) is transferred to Archegleis Iablokoff-Khnzorian. Phrynocaria astrolabiana (Weise) and Coccinella undecimpunctata Linnaeus are recorded as new to Australia.

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“…and Coelophora auberti Chazeau, or in Coelophora inaequalis (F.) and Menochilus sexmaculatus (F.) in the New Hebrides (Chazeau, 1978). Only C. inaequalis had been previously studied (Timberlake, 1922;Hales, 1976;Houston, 1979). Houston's results indicate that inheritance of colour patterns in C. inaequalis is governed by mosaic dominance, but this could not be established for C. quadrivittata.…”

mentioning

confidence: 99%

ON POLYMORPHISM IN ELYTRAL COLORATION PATTERN IN COELOPHORA QUADRIVITTATA (COLEOPTERA, COCCINELLIDAE)

Chazeau

1980

Entomologia Exp Applicata

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The genetics of polymorphism in elytral coloration pattern was studied in the endemic New Caledonian coccinellid Coelophora quadrivittata Fauvel. Cross‐breeding results can be explained by recognizing that the three basic types of pattern (pale, spotted, and striped) are due to the occurrence of three different alleles (or pseudo‐allelic genes) designated ap, am, and aq respectively, the order of dominance being aq>am>ap. Other genes participate in local extensions of melanic areas. RÉSUMÉ SUR LE POLYMORPHISME OBSERVÉ DANS LA COLORATION ÉLYTRALE DE COELOPHORA QUADRIVITTATA (COLEOPTERA, COCCINELLIDAE) Le problème posé par la grande similitude des types de coloration élytrale, observée chez certaines coccinelles polymorphes de Nouvelle‐Calédonie et des Nouvelles‐Hébrides, a été abordé par l'étude de la transmission de ces caractères chez une espèce néo‐calédonienne endémique: Coelophora quadrivittata Fauvel. Les résultats des croisements effectués peuvent s'interpréter par l'existence de trois types de coloration de base: clair (pale), taché (spotted) et rayé (striped), sous la dépendance de trois gènes allèles (ou pseudo‐allèles) respectivement notés ap, am et aq, dans l'ordre de dominance aq>am>ap. D'autres gènes interviennent en outre dans l'extension locale de la mélanisation.

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MOSAIC DOMINANCE IN THE INHERITANCE OF THE COLOUR PATTERNS OF COELOPHORA INAEQUALIS (F.) (COLEOPTERA: COCCINELLIDAE)

Cited by 9 publications

References 6 publications

Multiple Origins of Elytral Reticulation Modifications in the West Palearctic Agabus bipustulatus Complex (Coleoptera, Dytiscidae)

Multiple Origins of Elytral Reticulation Modifications in the West Palearctic Agabus bipustulatus Complex (Coleoptera, Dytiscidae)

A revision of the Australian Coccinellidae (Coleoptera). Part 1. Subfamily Coccinellinae

ON POLYMORPHISM IN ELYTRAL COLORATION PATTERN IN COELOPHORA QUADRIVITTATA (COLEOPTERA, COCCINELLIDAE)

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