【24h】

Plugging away

机译:堵住

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Smack! You've managed violently to halt a mosquito snacking on your blood. But how likely is it that the departed beast-ie was the kind that transmits malaria? The latest research shows that the answer has a lot to do with intimate details of the bug's sex life. There are a few hundred mosquito species in the genus Anopheles, but just a few are responsible for a great majority of the 600,000 annual malaria deaths. Most Anophelines are poor hosts for the Plasmo-dium parasites that cause the disease. But the differences between the dangerous mosquitoes and the merely annoying ones have remained unclear. That is changing, as the genetic and sexual particulars of Anophelines are laid bare. In January a team led by Nora Besansky of the University of Notre Dame in Indiana published the genomes of 16 species, representing the full gamut of "vector capaci-ty"-the ability to carry the malarial parasite. They painted a complex picture, reflecting much interbreeding over hundreds of thousands of years.
机译:m!您已经采取了猛烈的措施来止住血液中的蚊子零食。但是,已灭绝的野兽(即传播疟疾的那类动物)的可能性有多大?最新研究表明,答案与该虫的性生活的详细信息有很大关系。按蚊属中有数百种蚊子,但在每年60万例疟疾死亡中,只有少数是原因。大多数疟蚊是导致该病的疟原虫寄生虫的寄主。但是,危险的蚊子和仅仅是令人讨厌的蚊子之间的区别仍然不清楚。随着按蚊的遗传特征和性特征暴露无遗,这种情况正在发生变化。一月份,由印第安那州圣母大学的诺拉·贝桑斯基(Nora Besansky)领导的研究小组发表了16种物种的基因组,代表了“载体能力”(携带疟原虫的能力)的全部范围。他们描绘了一幅复杂的图画,反映了数十万年来的许多杂种。

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    《The economist》 |2015年第8927期|73-73|共1页
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