Why can hairy crabs regenerate their limbs?Shanghai scientific researchers reveal the secret

Xinhua News Agency, Shanghai, September 22 (Reporter Wu Zhendong) The reporter learned from Shanghai Ocean University that the research team led by the school's scientific research team made breakthroughs in the Research and Broken limbs regeneration. Related results were recently published in the international academic journal "Science progress".

Chinese crab crabs, commonly known as hairy crabs, are high -economic aquatic crustaceans in my country, with huge industries. According to scientific researchers, the phenomenon of broken limbs is more common in the process of Chinese velvet crab breeding. Although this crab has a broken limb regeneration ability, the regenerative limbs are significantly different from the normal growth. Most of the low prices have caused losses to farmers. Therefore, the genetic secret to reveal the regeneration of Chinese velvet crab is broken limbs is of great significance for its scientific breeding and optimized breeding technology.

The number of chromosomes of Chinese crab chromosomes and high genome repeated sequences, and have long -term genome assembly problems, and this is the basis of the next stage of research. The research team of Shanghai Ocean University combined with Chinese and foreign researchers to use the third -generation sequencing, high -throughput chromosome conformity capture and other technologies to carry out the whole genome sequencing and assembly of the Yangtze River Water System Chinese Crab Skutra. Appraisal 20286 protein encoding genes.

On this basis, scientific researchers conducted a comparative genetic analysis. Through the comparative transcription group and genetic analysis of different development periods during the breaking limb regeneration, the Innexin gene family played an important molecule in the early stage of the regeneration of the Chinese crab broken limb regeneration in the Chinese velvet crab. The signal conduction effect, the INEXIN2 gene played the role of the underwriting of the Chinese chinensis by guiding the downstream gene.

Studies have also found that in the process of Chinese velvet crab perverts and regeneration biology, the SMYDA gene family plays an important surface modification role.

According to reports, my country's aquaculture has developed from traditional phenotype breeding to molecular breeding. This research has provided important genome resources and platforms for molecular breeding of Chinese crab crabs. "On the one hand, through the improvement of subsequent varieties to reduce the occurrence of broken limb phenomena; on the other hand, it can help enhance the technology of Chinese velvet crab breeding, so that farmers can adopt more timely and scientific intervention when facing the phenomenon of broken limbs." Shanghai Ocean Ocean Professor Wang Chenghui, the person in charge of the university research team.

【Edit: Tian Boqun】

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