Genetic studies in poultry

Punnett, R. C.; Bailey, P. G.

doi:10.1007/bf02984299

Cited by 31 publications

(5 citation statements)

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“…Previous work on this and other bird species suggests that the observed changes in egg color and spotting were evolutionary rather than environmentally induced (Punnett and Bailey 1920;Punnett 1933;Goodman and Shealy 1977;Collias 1984;Mikšík et al 1996;Hunt et al 1999).…”

Section: Fig 2 Examples Of Village Weaver Eggs From Two Study Sitesmentioning

confidence: 61%

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Lahti

2006

Evolution

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Abstract. Broad ecological shifts can render previously adaptive traits nonfunctional. It is an open question as to how and how quickly nonfunctional traits decay once the selective pressures that favored them are removed. The village weaverbird (Ploceus cucullatus) avoids brood parasitism by rejecting foreign eggs. African populations have evolved high levels of within-clutch uniformity as well as individual distinctiveness in egg color and spotting, a combination that facilitates identification of foreign eggs. In a companion study, I showed that these adaptations in egg appearance declined following introductions of weavers into habitats devoid of egg-mimicking brood parasites. Here, I use experimental parasitism in two ancestral and two introduced populations to test for changes in egg rejection behavior while controlling for changes in egg appearance. Introduced populations reject foreign eggs less frequently, but the ability of source and introduced populations to reject foreign eggs does not differ after controlling for the evolution of egg color and spotting. Therefore, egg rejection behavior in introduced populations of the village weaver has been compromised by changes in egg appearance, but there has been no significant decline in the birds' ability to recognize foreign eggs. This result reconciles earlier studies on this system and provides insights into the ways behavior can change over generations, especially in the context of recognition systems and the avoidance of brood parasitism.

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Section: Fig 2 Examples Of Village Weaver Eggs From Two Study Sitesmentioning

confidence: 61%

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Lahti

2006

Evolution

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“…In experimental studies of other birds, eggshell color and spotting were generally found not to vary with environmental factors, including diet (30,31). Egg color has been artificially selected during the domestication of poultry (32). Egg color in fowl appears to be under polygenic autosomal control (33), with some color features perhaps inherited through the female line (34).…”

Section: Discussionmentioning

confidence: 99%

Evolution of bird eggs in the absence of cuckoo parasitism

Lahti

2005

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

106

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Historical introductions of species into new habitats can create rare opportunities to test evolutionary hypotheses, such as the role of natural selection in maintaining traits. This study examines two independent introductions of the African village weaverbird (Ploceus cucullatus) to islands where selection on egg appearance traits is expected to differ markedly from that of the source populations. The color and spotting of village weaver eggs in Africa are highly consistent within clutches, but highly variable between individuals. These two features may be an evolutionary response to brood parasitism. In Africa, weavers are parasitized by each other and by the diederik cuckoo (Chrysococcyx caprius), an egg mimic. African village weavers were introduced one century ago to Mauritius, and over two centuries ago to Hispaniola. Both islands are devoid of egg-mimicking brood parasites. In these two populations, between-individual variation and within-clutch consistency in egg appearance have both decreased, as has the incidence of spotting, relative to the source populations in Africa. These reductions are more pronounced on Hispaniola, the earlier introduction. Such changes support the hypothesis that egg appearance in the African village weaver has been maintained by natural selection as a counteradaptation to cuckoo brood parasitism. These results illustrate that the removal of an agent of selection can sometimes bring about rapid evolutionary consequences.brood parasitism ͉ introduced species ͉ Ploceidae ͉ rapid evolution ͉ trait loss

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“…Dicha característica no es exclusiva de la raza Gallina Mapuche, dado que las razas de gallinas chinas como Dongxiang y Lushi también ponen huevos con estas coloraciones, aunque el sitio de inserción de este retrovirus endógeno difiere por veintitrés 23 pares de bases del de la raza sudamericana y sus descendientes norteamericanas, las actuales gallinas "Araucanas", entre otras. Por tanto, se entiende que se trata de eventos de integración retroviral independientes en tiempo y espacio entre ambas poblaciones (Punnett, 1933;Punnett & Bailey, 1920;Langdon, 1989;Bartlett et al, 1996;Zhao et al, 2006;Gultemirian et al 2009;Wanget al, 2013;Wragg et al,2013;Jeong et al, 2016). Se consideró relevante al huevo de cáscara celeste y su importancia socio cultural (Subiabre et al, 2011;Rivera de Bianchi et al, 1961;Dottavio & Di Masso, 2010;Revidatti, 2021;Rivera, 2010) en lo que fuera el primer prototipo de estándar racial en el país.…”

Section: La Raza Gallina Mapuche Y Sus Subtipos Racialesunclassified

“…Existe gran controversia en torno a cuál es el tipo de cresta original en la raza. Podemos encontrar aficionados que están a favor de la cresta en arveja como muy asociada al huevo de color azul, argumentándose en lo demostrado por Punnett (1933) y Punnett & Bailey (1920), y los que están a favor de la cresta sencilla, quienes afirman que la cresta triple se asocia a hibridación con ejemplares malayoides o asiáticos de combate (American Poultry Association, 2015; Roberts, 2009;Standard Argentino de Perfección Avícola Ilustrado, 1928). A pesar de estos debates, existe gran consenso en lo referido al tamaño que esta debe tener, debiendo ser pequeño.…”

Section: Características Generales De La Raza Gallina Mapucheunclassified

Primer estándar de perfeccionamiento racial de la Gallina Mapuche (Gallus gallus domesticus) en Argentina: revisión, sistematización de datos y elaboración

Alonso

2023

Analecta Vet

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La avicultura ornamental cumple un rol valioso en la preservación del acervo genético y cultural de las aves de corral en todo el mundo. En la ruralidad argentina, la crianza de aves de raza pura es una actividad ampliamente difundida, y se encuentra representada por las distintas asociaciones de aficionados. El “Standard Argentino de Perfección Avícola”, publicado por la Asociación Argentina de Criadores de Aves, Conejos y Abejas, en el año 1928 fue, y aún sigue siendo, el patrón de referencia para el desarrollo de esta actividad. Por promoción de la Comisión Avícola del Sur del Salado, y en colaboración con otras asociaciones y organizaciones del país, se resolvió revisar, reescribir y reeditar dicho estándar, incorporando nuevas razas, como es el caso de la única gallina sudamericana, prehispánica, conocida en la actualidad: la Gallina Mapuche (Gallus gallus domesticus). En el presente trabajo se hace una revisión, sistematización de tareas, recopilación de datos de investigación, análisis y elaboración del inédito “Primer Estándar de Perfeccionamiento Racial de la Gallina Mapuche”, en Argentina.

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Genetic studies in poultry

Cited by 31 publications

References 1 publication

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Persistence of Egg Recognition in the Absence of Cuckoo Brood Parasitism: Pattern and Mechanism

Evolution of bird eggs in the absence of cuckoo parasitism

Primer estándar de perfeccionamiento racial de la Gallina Mapuche (Gallus gallus domesticus) en Argentina: revisión, sistematización de datos y elaboración

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