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| Scientists successfully obtained high-quality king crab genome map |
Photo courtesy ofKing Crab Tang Boping
Photo courtesy of Tang Boping
King crab genome chromosome mapcourtesy of Tang Boping
Photo courtesy of Tang Boping
The evolutionary relationship between king crabs and other pan-crustaceans Photo courtesy of Tang Boping
Photo courtesy of Tang Boping Recently, "Molecular Ecological Resources" published the first high-quality genome map of crooked-tailed crabs, which is the genome of an important economic crab, the blue king crab (Paralithodes platypus)
.
Due to the important economic value of king crabs, high reproduction rate, unique body structure and strong deep-sea adaptability, as well as a special systematic position in crab evolution, it has long been the focus of academic attention and many problems The research urgently needs to be carried out at the genome level
.
For this reason, Tang Boping, a professor at the Jiangsu Provincial Salt Soil Biological Resources Research Key Laboratory of Yancheng Normal University, led the team to cooperate with many domestic and foreign scientific research institutes and universities to jointly carry out the genome research of the blue king crab
.
Due to the important economic value of king crabs, high reproduction rate, unique body structure and strong deep-sea adaptability, as well as a special systematic position in crab evolution, it has long been the focus of academic attention and many problems The research urgently needs to be carried out at the genome level
Tang Boping introduced that real short-tailed crabs such as king crabs and swimming crabs are different and belong to the crooked-tailed crabs
The research team also specifically explored the reasons for the formation of such a huge genome of the king crab
.
Studies have shown that the insertion of a large number of repetitive sequences, especially the insertion of long discrete elements and long tandem repeats, is the main reason for the formation of the king crab large genome
.
Based on published genome-wide data, the systematic evolutionary study of pan-crustaceans (crustaceans and insects) has shown that crooked-tailed crabs (king crabs) and bramble crabs (river crabs and swimming crabs) are closely related, and their differentiation period is This is the late Permian period 270 million years ago
.
Studies have shown that the king crab population has experienced a very obvious population decline and population expansion process in history
.
The current huge population of king crabs is the result of population expansion 100,000 years ago
.
The deciphering of the high-quality king crab genome chromosome map will greatly promote the basic research of crustaceans and the development of crab breeding, breeding, and disease prevention and control
Related paper information: https://doi.
https://doi.
