Expansion of learning capacity elicited by interspecific hybridization

WADA Kazuhiro

Department of Biological Sciences

Jun. 20, 2024

図1. （上）今回の研究で用いたキンカチョウとサクラスズメを親とした異種間交雑F1ハイブリッドの 実際。常染色体・性染色体（Z染色体）ともにハイブリッド雄では、親種からそれぞれの染色体を1 本ずつ持つ。（下）実際に学んだ歌の例。キンカチョウ、サクラスズメの雛は、自種の歌の特徴をお手 本の歌モデルから学び、別種の歌は学ばない。しかし、ハイブリッド雛は、お手本の両種の歌を学ぶ。

Joint press release (in Japanese)
Hokkaido University, The Exploratory Research Center on Life and Living Systems, National Institute for Physiological Sciences, University of Hyogo

Abstract
Learned behavior, a fundamental adaptive trait in fluctuating environments, is shaped by species-specific constraints. This phenomenon is evident in songbirds, which acquire their species-specific songs through vocal learning. To explore the neurogenetic mechanisms underlying species-specific song learning, we generated F1 hybrid songbirds by crossing Taeniopygia guttata with Aidemosyne modesta. These F1 hybrids demonstrate expanded learning capacities, adeptly mimicking songs…

Read the original article on Science Advances

Article inforamation
Yukino Shibata et al. ,Expansion of learning capacity elicited by interspecific hybridization.Sci. Adv.10,eadn3409(2024).
DOI:10.1126/sciadv.adn3409