MoY基因調控農作物果蠅性別決定
作者:
小柯機器人發布時間:2019/8/30 15:45:05
義大利那不勒斯大學Giuseppe Saccone、瑞士蘇黎世大學Mark D. Robinson、義大利佩魯賈大學Philippos Aris Papathanos等課題組合作研究發現,在大多數農作物害蟲果蠅中Maleness-on-the-Y基因調控性別決定。這一成果將於9月27日發表於《科學》。
在農業害蟲地中海實蠅(Ceratitis capitata)(地中海果蠅)中,研究人員鑑定了Y染色體連鎖基因,Maleness-on the-Y (MoY),其編碼一個對於雄性發育必需的小蛋白質。在 XY型胚胎中MoY的沉默或破壞導致雌性化,然而在XX型胚胎中過表達MoY則導致雄性化。 改型的XY雌性和XX雄性雜交可以產生雄性和雌性後代,這表明Y染色體可以由XY雌性傳播。在實蠅科的其他物種中, 與Y染色體連鎖的MoY在功能上也是保守,突出了其作為針對這些主要農作物害蟲研發更有效控制工具的潛力。
據了解在昆蟲體內,通過控制保守的調控性別分化的模塊來傳導快速進化的性別決定信號。
附:英文原文
Title: Maleness-on-the-Y (MoY) orchestrates male sex determination in major agricultural fruit fly pests
Author: Angela Meccariello, Marco Salvemini, Pasquale Primo, Brantley Hall, Panagiota Koskinioti, Martina Dalíková, Andrea Gravina, Michela Anna Gucciardino, Federica Forlenza, Maria-Eleni Gregoriou, Domenica Ippolito, Simona Maria Monti, Valeria Petrella, Maryanna Martina Perrotta, Stephan Schmeing, Alessia Ruggiero, Francesca Scolari, Ennio Giordano, Konstantina T. Tsoumani, Frantiek Marec, Nikolai Windbichler, Kallare P. Arunkumar, Kostas Bourtzis, Kostas D. Mathiopoulos, Jiannis Ragoussis, Luigi Vitagliano, Zhijian Tu, Philippos Aris Papathanos, Mark D. Robinson, Giuseppe Saccone
Issue&Volume: 2019/09/27
Abstract: In insects, rapidly evolving primary sex-determining signals are transduced by a conserved regulatory module controlling sexual differentiation. In the agricultural pest Ceratitis capitata (Mediterranean fruit fly, Medfly) we identified a Y-linked gene, Maleness-on the-Y (MoY), encoding a small protein that is necessary and sufficient for male development. Silencing or disruption of MoY in XY embryos causes feminization whereas overexpression of MoY in XX embryos induces masculinization. Crosses between transformed XY females and XX males give rise to males and females, indicating that a Y chromosome can be transmitted by XY females. MoY is Y-linked and functionally conserved in other species of the Tephritidae family, highlighting its potential to serve as a tool for developing more effective control strategies against these major agricultural insect pests.
DOI: 10.1126/science.aax1318
Source:https://science.sciencemag.org/content/early/2019/08/28/science.aax1318
Science:《科學》,創刊於1880年。隸屬於美國科學促進會,最新IF:41.037