Researchers of the Chinese Academy of Sciences recently released the chromosomal level genome of papilio, and further revealed that the origin of the genus papilio was between 39 and 57 million years ago.

Due to its rich morphological diversity, butterflies have been regarded as one of the important groups in the study of adaptive evolution since the time of Darwin.In recent years, it has been regarded as an ideal model for studying morphological inheritance, evolution and development, and has become one of the important model organisms in developmental biology, evolutionary biology, population genetics, conservation biology and ecology. Papilionidae is a branch of butterfly with important evolutionary status. Because of its rich color and morphological diversity, it has become the subject of insect ecology and evolutionary studies.

On the basis of completing the genomes of all butterfly model species of papilio aureus and its related species of papilio citrus in 2015, the Chinese Academy of Sciences conducted a genome study on papilio cerasus, which is widely distributed in east Asia, South Asia and southeast Asia and is of great significance for the study of body color evolution and species differentiation.Genome at the level of chromosome (29 autosomes and 1 sex chromosome) was successfully assembled by using three generations long reading and long reading sequencing technology and high throughput chromosome conformation capture technology.The results of genome annotation indicated that more than half of the genome size of papilio papilio was a repeat sequence, which was the highest repeat sequence among all the published butterfly genomes.The evolutionary tree constructed suggests that the genus emilio originated between 39 and 57 million years ago, and that the time of divergence between emilio Cerberus and emilio Cerberus is between 23 and 35 million years.

Source: http://yn.yunnan.cn

Time: 2019.11.14