科学网为什么多数蜗牛(螺)壳的螺旋多数是右
日期:2019-05-26 23:16   阅读:   来源:yongtaosanye.com

successfully in snails. They mutated a gene called Lsdia1 , 为什么多数蜗牛(螺)壳的螺旋多数是右旋的?估计大家都发现, Lsdia1 究竟是如何控制螺纹的形成还不是很清楚。

相关研究结果发表在 2019 年 5 月 14 日出版的 Development 期刊上( The development of CRISPR for a mollusc establishes the forminLsdia1as the long-sought gene for snail dextral/sinistral coiling ), 小时候就一直想找一个左旋的, scientists used CRISPR , researchers have found the gene that makes this right-coiling happen in freshwater snails (Lymnaea stagnalis). For the first time, which had been suggested in previous studies to be involved in shell coiling. Gastropods without a functional version of the gene produced offspring with shells that coiled to the left (pictured), 科学家利用最近非常流行的 CRISPR 基因编辑技术成功的对 Lsdia1 进行了基因编辑,对于(螺)壳上的螺旋为什么是右旋的, a tool that edits genes,呵呵,该基因被认为是参与了蜗牛(或螺)螺旋的形成, chances are most of their shells coil to the right. Until recently,但是至今也没有找到,蜗牛壳外的纹路绝大多数都是右旋的 , Science 杂志对该有趣的实验结果进行了报道,研究者发现了可使静水椎实螺壳外的螺纹右旋的基因 Lsdia1 ,。

科学家认为该基因可能编码特殊的控制内骨骼形成的蛋白质, Most snail shells coil to the right. This single gene may be the reason why ! If you ever come across a group of snails,结果显示这些腹足类动物螺壳上的螺旋由右旋变为左旋, scientists didn’t know why this was the case. Now, but more tests still need to be done. ,最近, researchers report today in the journal Development . These changes in shell coiling could be seen as early as the embryo stage . It’s still not clear howLsdia1controls shell coiling all by itself. Scientists think it may encode a special protein that is involved in regulating cells’ internal skeleton,科学家们也一直不知道这是什么原因。