Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica)

Yasko Tobari, Koji Z. Nakamura, Kazuo Okanoya

    研究成果: Article

    26 引用 (Scopus)

    抄録

    Bengalese finches, Lonchura striata, are extremely sexually dimorphic in their singing behavior; males sing complex songs, whereas females do not sing at all. This study describes the developmental differentiation of the brain song system in Bengalese finches. Nissl staining was used to measure the volumes of four telencephalic song nuclei: Area X, HVC, the robust nucleus of the arcopallium (RA), and the lateral portion of the magnocellular nucleus of the anterior nidopallium (LMAN). In juveniles (circa 35 days old), Area X and the HVC were well developed in males, while they were absent or not discernable in females. The RA was much larger in males but barely discernable in females. In males, the volumes of Area X and the RA increased further into adulthood, but that of the HVC remained unchanged. The LMAN volume was greater in juveniles than in adults, and there was no difference in the LMAN volume between the sexes. The overall tendency was similar to that described in zebra finches, except for the volume of the RA, where the degree of sexual dimorphism is larger and the timing of differentiation occurs earlier in Bengalese finches. Motor learning of the song continues until day 90 in zebra finches, but up to day 120 in Bengalese finches. Earlier neural differentiation and a longer learning period in Bengalese finches compared with zebra finches may be related to the more elaborate song structures of Bengalese finches.

    元の言語English
    ページ(範囲)1089-1094
    ページ数6
    ジャーナルZoological Science
    22
    発行部数10
    DOI
    出版物ステータスPublished - 2005 10

    Fingerprint

    gender differences
    animal communication
    Taeniopygia guttata
    learning
    adulthood
    sexual dimorphism
    brain
    gender

    ASJC Scopus subject areas

    • Animal Science and Zoology

    これを引用

    Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica). / Tobari, Yasko; Nakamura, Koji Z.; Okanoya, Kazuo.

    :: Zoological Science, 巻 22, 番号 10, 10.2005, p. 1089-1094.

    研究成果: Article

    Tobari, Yasko ; Nakamura, Koji Z. ; Okanoya, Kazuo. / Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica). :: Zoological Science. 2005 ; 巻 22, 番号 10. pp. 1089-1094.
    @article{da880903800448e6abdf09c6b63d574f,
    title = "Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica)",
    abstract = "Bengalese finches, Lonchura striata, are extremely sexually dimorphic in their singing behavior; males sing complex songs, whereas females do not sing at all. This study describes the developmental differentiation of the brain song system in Bengalese finches. Nissl staining was used to measure the volumes of four telencephalic song nuclei: Area X, HVC, the robust nucleus of the arcopallium (RA), and the lateral portion of the magnocellular nucleus of the anterior nidopallium (LMAN). In juveniles (circa 35 days old), Area X and the HVC were well developed in males, while they were absent or not discernable in females. The RA was much larger in males but barely discernable in females. In males, the volumes of Area X and the RA increased further into adulthood, but that of the HVC remained unchanged. The LMAN volume was greater in juveniles than in adults, and there was no difference in the LMAN volume between the sexes. The overall tendency was similar to that described in zebra finches, except for the volume of the RA, where the degree of sexual dimorphism is larger and the timing of differentiation occurs earlier in Bengalese finches. Motor learning of the song continues until day 90 in zebra finches, but up to day 120 in Bengalese finches. Earlier neural differentiation and a longer learning period in Bengalese finches compared with zebra finches may be related to the more elaborate song structures of Bengalese finches.",
    keywords = "Bengalese finch, Sexual differentiation, Song control system, Volumetric study",
    author = "Yasko Tobari and Nakamura, {Koji Z.} and Kazuo Okanoya",
    year = "2005",
    month = "10",
    doi = "10.2108/zsj.22.1089",
    language = "English",
    volume = "22",
    pages = "1089--1094",
    journal = "Zoological Science",
    issn = "0289-0003",
    publisher = "Zoological Society of Japan",
    number = "10",

    }

    TY - JOUR

    T1 - Sex differences in the telencephalic song control circuitry in Bengalese finches (Lonchura striata var. domestica)

    AU - Tobari, Yasko

    AU - Nakamura, Koji Z.

    AU - Okanoya, Kazuo

    PY - 2005/10

    Y1 - 2005/10

    N2 - Bengalese finches, Lonchura striata, are extremely sexually dimorphic in their singing behavior; males sing complex songs, whereas females do not sing at all. This study describes the developmental differentiation of the brain song system in Bengalese finches. Nissl staining was used to measure the volumes of four telencephalic song nuclei: Area X, HVC, the robust nucleus of the arcopallium (RA), and the lateral portion of the magnocellular nucleus of the anterior nidopallium (LMAN). In juveniles (circa 35 days old), Area X and the HVC were well developed in males, while they were absent or not discernable in females. The RA was much larger in males but barely discernable in females. In males, the volumes of Area X and the RA increased further into adulthood, but that of the HVC remained unchanged. The LMAN volume was greater in juveniles than in adults, and there was no difference in the LMAN volume between the sexes. The overall tendency was similar to that described in zebra finches, except for the volume of the RA, where the degree of sexual dimorphism is larger and the timing of differentiation occurs earlier in Bengalese finches. Motor learning of the song continues until day 90 in zebra finches, but up to day 120 in Bengalese finches. Earlier neural differentiation and a longer learning period in Bengalese finches compared with zebra finches may be related to the more elaborate song structures of Bengalese finches.

    AB - Bengalese finches, Lonchura striata, are extremely sexually dimorphic in their singing behavior; males sing complex songs, whereas females do not sing at all. This study describes the developmental differentiation of the brain song system in Bengalese finches. Nissl staining was used to measure the volumes of four telencephalic song nuclei: Area X, HVC, the robust nucleus of the arcopallium (RA), and the lateral portion of the magnocellular nucleus of the anterior nidopallium (LMAN). In juveniles (circa 35 days old), Area X and the HVC were well developed in males, while they were absent or not discernable in females. The RA was much larger in males but barely discernable in females. In males, the volumes of Area X and the RA increased further into adulthood, but that of the HVC remained unchanged. The LMAN volume was greater in juveniles than in adults, and there was no difference in the LMAN volume between the sexes. The overall tendency was similar to that described in zebra finches, except for the volume of the RA, where the degree of sexual dimorphism is larger and the timing of differentiation occurs earlier in Bengalese finches. Motor learning of the song continues until day 90 in zebra finches, but up to day 120 in Bengalese finches. Earlier neural differentiation and a longer learning period in Bengalese finches compared with zebra finches may be related to the more elaborate song structures of Bengalese finches.

    KW - Bengalese finch

    KW - Sexual differentiation

    KW - Song control system

    KW - Volumetric study

    UR - http://www.scopus.com/inward/record.url?scp=28844482960&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=28844482960&partnerID=8YFLogxK

    U2 - 10.2108/zsj.22.1089

    DO - 10.2108/zsj.22.1089

    M3 - Article

    C2 - 16286720

    AN - SCOPUS:28844482960

    VL - 22

    SP - 1089

    EP - 1094

    JO - Zoological Science

    JF - Zoological Science

    SN - 0289-0003

    IS - 10

    ER -