Study of color variation in the solitary ascidian Halocynthia roretzi, collected in the Inland Sea of Japan.
Zoolog Sci
; 21(8): 891-8, 2004 Aug.
Article
em En
| MEDLINE
| ID: mdl-15334002
ABSTRACT
In the vicinity of Yashiro Island in the Inland Sea of Japan, the solitary ascidian (tunicate) Halocynthia roretzi with tunics of various colors were collected. Samples of these animals were sorted into three groups on the basis of visual observation of tunic color. The red group includes animals with dark-red, light-red, or orange tunics. The pink group includes animals with tunic colors ranging between red and white. The white group includes only animals with completely white tunics. Animals in the white group lacked color internally, with the exception of the hepatopancreas and the gonads in breeding season; the epidermis and gill basket were white. In contrast, animals of both the red group and the pink group were colored internally, with red-orange epidermis and yellow gill basket. Alloreactivity was tested by mixed-hemocyte incubation between different animals belonging to the same color group and between animals belonging to different color groups. Alloreactivity between animals of the white group was 56.3%, between animals of the pink group was 60.0%, and between animals of the red group was 69.3%. The relatively high frequency of compatible combinations among the white animals is discussed.
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Base de dados:
MEDLINE
Assunto principal:
Urocordados
/
Pigmentação
Limite:
Animals
País/Região como assunto:
Asia
Idioma:
En
Revista:
Zoolog Sci
Assunto da revista:
BIOLOGIA
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Japão