First report of partial albinism in genus Thrichomys (Rodentia: Echimyidae)

Neves, Antonio Carlos da Silva Abreu; Coutinho, Ludmilla Carvalho; Oliveira, Marcione Brito de; Pessôa, Leila Maria

doi:10.1590/0031-1049.2014.54.09

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…In a recent study, 198 cases of abnormal coloration in 26 Neotropical mammal species was reported (Abreu et al 2013), with cases being much more common in cetaceans, chiropterans and rodents (Pessôa & Reis 1995;Fertl et al 2004;Abreu et al 2013, Neves et al 2014. Except for the report of the occurrence in pinniped species (Acevedo & Aguayo 2008;Abreu et al 2013), anomalous colors in other Carnivora is known in Eira barbara (Trolle 2003;Reis et al 2005;Tortato & Althoff 2007), in Nasua narica (Silva-Caballero et al 2014), and in Lontra longicaudis (Arriaga-Flores et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

et al. 2017

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The occurrence of anomalous coloration (albinism, leucism and melanism) in mammals is a rare phenomenon in nature, but this phenomenon has been reported for several species of mammals. In this study, we report on the occurrence of leucism in Eira barbara by examining three road-killed individuals and two sightings of live animals in Reserva Particular do Patrimônio Natural Santuário do Caraça, southeastern Brazil. In addition, we examined tayra specimens housed in mammal collections from Brazil and USA. The animals found dead and those sighted had a whitish yellow fur on the body and head, resulting in lighter coloration than the coloring pattern commonly observed in tayras. Despite these lighter color pattern, the specimens showed parts of soft tissue, such as iris and the skin, with pigmentation very similar to that present in individuals with the typical color pattern. This set of factors indicates the specimens recorded were in fact leucistic and not albino. Among the specimens examined in the scientific collections, we found nine individuals from different localities that presented the whitish yellow color pattern. Some studies attribute the higher frequency of cases of leucism due to small populations and / or with some mechanism of reproductive isolation. Thus, analysis of the genetic variability of populations containing individuals with such characteristics should be considered. On the other hand, the occurrence of polymorphic color phenotype in tayras indicates that hypotheses related to the fixation of recessive characteristics, or on possible environmental adaptive advantages of these phenotypes can be tested.

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Section: Introductionmentioning

confidence: 99%

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

et al. 2017

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“…Três pares de mamas Oliveira & Bonvicino, 2011). Neves et al (2014), encontraram indivíduos de Thrichomys com pelagem albina e relata que é comum esse tipo de característica nesse gênero.…”

Section: Nomes Antigosunclassified

Ficha de Thrichomys apereoides

Alexandre Reis Percequillo,

Cibele Rodrigues Bonvicino,

Ana Carolina Loss Rodrigues

et al. 2024

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Thrichomys apereoides é endêmica do Brasil, ocorrendo especificamente no estado de Minas Gerais. Tratase de um complexo de espécies, aparentemente tolerantes a vários tipos de hábitat. Ocorre em várias áreas protegidas e está intimamente associado a um cinturão diagonal de vegetação aberta. É caçada para alimentação, porém o impacto dessa ameaça não coloca a espécie em risco de extinção em futuro próximo e não há dados de tendência populacional conhecida. Desta forma, Thrichomys apereoides foi categorizada como Menos Preocupante (LC).

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“…All types of melanin production deficiency are hereditary and genetic (congenital) abnormalities. Such disorders have been observed in numerous species of wild mammals throughout the world, including marine (Fertl andRosel 2002, Abreu et al 2013), terrestrials (Lopucki and Mróz 2010, Abreu et al 2013, Neves et al 2013, Xu et al 2013, Camargo et al 2014, Nedyalkov et al 2014, Sayyed et al 2015, Kumar et al 2016, Romero et al 2018, Oliveira et al 2019 and bats (Uieda 2000, Murariu and Chisamera 2006, McCardle 2012, Ramasindrazana et al 2014, Rengifo et al 2014, Smirnov et al 2014, Zalapa et. al.…”

Section: First Record Of Albinism For the Doglike Bat Peropteryxmentioning

confidence: 99%

First record of albinism for the doglike bat, Peropteryx kappleri Peters, 1867 (Chiroptera, Emballonuridae)

Bernardi¹,

Prous²,

Ribeiro³

et al. 2019

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Albinism is a type of deficient in melanin production could be the result of genetic anomalies that are manifest as the absence of coloration of part or the entire body of an organism. This type of chromatic disorder can affect several vertebrate species, but is rarely found in nature. Among bats, more than 450 cases of total or partial loss of body pigmentation have been reported. Herein we provide the first report of albinism for the bat species Peropteryxkappleri (Chiroptera: Emballonuridae) with two such specimens being observed from iron formation caves in a conservation unit “Floresta Nacional de Carajás”, Amazon forest, northern of Brazil.

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First report of partial albinism in genus Thrichomys (Rodentia: Echimyidae)

Abstract: Reports about albinism in rodents are common. In the family Echimyidae

Cited by 5 publications

References 8 publications

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

Ficha de Thrichomys apereoides

First record of albinism for the doglike bat, Peropteryx kappleri Peters, 1867 (Chiroptera, Emballonuridae)

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