Color Pattern Polymorphism in the Lake Erie Water Snake, Nerodia sipedon insularum

Evolution ◽  
1987 ◽  
Vol 41 (2) ◽  
pp. 241 ◽  
Author(s):  
Richard B. King
Keyword(s):  
Lake Erie ◽  
Color Pattern ◽  
Nerodia Sipedon ◽  
Water Snake ◽  
Color Pattern Polymorphism ◽  
Pattern Polymorphism

Color pattern variation in Lake Erie water snakes: inheritance

1993 ◽  
Vol 71 (10) ◽  
pp. 1985-1990 ◽  
Author(s):  
Richard B. King
Keyword(s):  
Lake Erie ◽  
Genetic Basis ◽  
Genetic Correlations ◽  
Color Pattern ◽  
Nerodia Sipedon ◽  
Major Locus ◽  
Water Snake ◽  
Estimate Heritability ◽  
Opposing Effects ◽  
Water Snakes

The hypothesis that color pattern variation in Lake Erie island water snake (Nerodia sipedon) populations results from the opposing effects of natural selection and gene flow requires that this variation have a genetic basis. To determine whether color pattern variation is genetically based, data on the color pattern of wild-caught females and their captive-born offspring were used to estimate heritability of and correlations among four color pattern components. These data, and the results of two laboratory crosses, were also used to test for major locus influences on color pattern. Heritabilities of color pattern components estimated from sib analysis were significantly greater than zero for all four color pattern components, ranging from 0.34 to 0.79. Phenotypic and genetic correlations among color pattern components were positive, ranging from 0.24 to 0.55 (phenotypic correlations) and from 0.40 to 0.82 (genetic correlations). However, inheritance of color pattern was not strictly quantitative. Rather, a major locus appeared to influence color pattern, with alleles at this locus possibly determining whether snakes had regular (mainland-like) or reduced color patterns. Allele frequencies at this locus may have influenced the rate at which island and mainland water snake populations initially differentiated from each other, and may explain the lack of reduced-pattern morphs under similar selective regimes elsewhere.

Pigment cell mechanisms underlying dorsal color-pattern polymorphism in the japanese four-lined snake

2013 ◽  
Vol 274 (12) ◽  
pp. 1353-1364 ◽  
Author(s):  
Takeo Kuriyama ◽  
Hanae Misawa ◽  
Kazuyuki Miyaji ◽  
Masazumi Sugimoto ◽  
Masami Hasegawa
Keyword(s):  
Pigment Cell ◽  
Color Pattern ◽  
Color Pattern Polymorphism ◽  
Pattern Polymorphism

A New Species of the Geophis sieboldi Group (Squamata: Colubridae) Exhibiting Color Pattern Polymorphism from Guerrero, Mexico

Herpetologica ◽  
2011 ◽  
Vol 67 (3) ◽  
pp. 332-343 ◽  
Author(s):  
Carlos J. Pavón-Vázquez ◽  
Uri O. García-Vázquez ◽  
Jean C. Blancas-Hernández ◽  
Adrián Nieto-Montes de Oca
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Color Pattern Polymorphism ◽  
Pattern Polymorphism ◽  
A New Species

scholarly journals The Genomic Basis of Color Pattern Polymorphism in the Harlequin Ladybird

2018 ◽  
Vol 28 (20) ◽  
pp. 3296-3302.e7 ◽  
Author(s):  
Mathieu Gautier ◽  
Junichi Yamaguchi ◽  
Julien Foucaud ◽  
Anne Loiseau ◽  
Aurélien Ausset ◽  
...  
Keyword(s):  
Color Pattern ◽  
Harlequin Ladybird ◽  
Color Pattern Polymorphism ◽  
Pattern Polymorphism ◽  
Genomic Basis
Sign in / Sign up

Export Citation Format

Share Document