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This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
You can thank your parents for your DNA. Because humans share genes through sexual reproduction, passing DNA from parent to child. It's known as the 'vertical transfer' of DNA.
Now imagine if you could share just one or two bits of your DNA with an unrelated stranger, through a handshake, or other incidental contact—and that stranger inserted your DNA into their genome. No sex. No offspring either. That's called the 'horizontal transfer' of DNA. It's obviously not how humans do it. But it's a mainstay of single-celled organisms like bacteria, which use the process to share antibiotic resistance genes, for example.

And now French scientists have found that horizontal DNA transfer could be a lot more common than we thought in multicellular organisms, too—insects, in this case. Because by analyzing 195 insect genomes, they found more than 2,200 cases of horizontal DNA transfer between unrelated species of flies and butterflies, beetles and wasps.
That total quadruples the number of horizontal DNA transfers previously described in all plants, animals and fungi. The study is in the Proceedings of the National Academy of Sciences.
How exactly this genetic transfer happens is still a mystery. Might be viruses, or parasites, doing the DNA delivery. But whatever the cause, it suggests that the evolution of insects, on a molecular level at least, may be something more of a shared success story.
Thanks for listening for Scientific American — 60-Second Science Science. I'm Christopher Intagliata.

参考译文

这里是科学美国人——60秒科学7l^fw.wH[~eV!e-)C~。我是克里斯托弗·因塔利亚塔,EH[rpon#BU。
你可以感谢父母给你DNAZf93G+ZVu!-2#zR。因为人类通过有性繁殖分享基因，父母将DNA传给子女c!+WxoNV0^j。这被称为DNA的“垂直转移”gW#A)&U_cJ5TnbIZQW。
现在想象一下，如果你可以通过握手或其他非故意接触与一个没有关系的陌生人分享一点DNA，那陌生人就会把你的DNA嵌入自己的基因组中flby@Y8WvLOxuRpF(|。没有性，也没有后代hbq)E!fExbc6nRy6|。这就是DNA 的“水平转移”^Hh5HER)hm-MQe[。很明显，这不是人类传递DNA的方式IJh&@=x*JaVRT。但是，这是细菌等单细胞生物体传递DNA的主要方式，比如，它们利用这一过程来分享抗生素抗性基因l]^t.lL]^]k%Z_sf;*。
现在，法国科学家发现，多细胞生物的水平基因转移可能也比我们想象的更常见，这里指的是昆虫C)aKmyEqS]R^|a_e。在分析了195个昆虫基因组以后，他们发现在苍蝇与蝴蝶、甲壳虫与黄蜂这些无关联的物种间，发生了2200多次DNA水平转移G,9;&|vmbFmA~hOQ。
2200多次，是此前描述的所有植物、动物和真菌DNA水平转移次数的4倍o#|uIjNrJBjsvNfWK。这一研究结果发表在《美国国家科学院院刊》上BPHHc%CwhJS]。
这种基因转移究竟是如何发生的仍旧是个谜qzI5fxs4.P=U。也许是病毒或寄生虫进行了DNA传递58H8@;%d=[b3nDEXy0。但无论是什么原因，这都表明至少在分子水平上，昆虫的进化可能不仅仅是分享成功的故事0;Nt)v1iwNAbhN-;。
谢谢大家收听科学美国人——60秒科学^;8AD+5K)5_PLdg^^。我是克里斯托弗·因塔利亚塔kAU#IMK[2OKU72k!。

译文为可可英语翻译，未经授权请勿转载！

重点讲解

重点讲解：
1. insert into 插入；嵌入；
例句：He took a small key from his pocket and slowly inserted it into the lock.
他从口袋里掏出一把小钥匙,慢慢地插到锁眼里Enw(ZGCWUd。
2. for example 例如；比如；
例句：For example, a research paper could be made into a video but would not be as easy to follow as the text.
比如，一份研究论文可以制作成视频，但不如文本易于理解V~l;^+ARKd3;。
3. at least 至少；起码；
例句：At least this second meeting had helped to thaw the atmosphere.
这第二次会议至少起到了缓和气氛的作用[AgMg6S9uzsWx;。