The genome sequence of segmental allotetraploid peanut Arachis hypogaea

Like many other crops, the cultivated peanut (Arachis hypogaea L.) is of hybrid origin and has a polyploid genome that contains essentially complete sets of chromosomes from two ancestral species. Here we report the genome sequence of peanut and show that after its polyploid origin, the genome has e...

Descripción completa

Detalles Bibliográficos
Autores: Bertioli, David J., Jenkins, Jerry, Clevenger, Josh, Dudchenko, Olga, Gao, Dongying, Seijo, José Guillermo, Leal Bertioli, Soraya C.M., Ren, Longhui, Farmer, Andrew D., Pandey, Manish K., Samoluk, Sergio Sebastián, Abernathy, Brian, Agarwal, Gaurav, Ballén Taborda, Carolina, Cameron, Connor, Campbell, Jacqueline, Chavarro, Carolina, Chitikineni, Annapurna, Chu, Ye, Dash, Sudhansu, El Baidouri, Moaine, Guo, Baozhu, Huang, Wei, Kim, Kyung Do, Korani, Walid, Lanciano, Sophie, Lui, Christopher G., Mirouze, Marie, Moretzsohn, Márcio C., Pham, Melanie, Shin, Jin Hee, Shirasawa, Kenta Shirasawa, Sinharoy, Senjuti, Sreedasyam, Avinash, Weeks, Nathan T., Zhang, Xinyou, Zheng, Zheng, Sun, Ziqi, Froenicke, Lutz, Aiden, Erez L., Michelmore, Richard, Varshney, Rajeev K., Holbrook, C. Corley, Cannon, Ethalinda K. S., Scheffler, Brian E., Grimwood, Jane, Ozias-Akins, Peggy, Cannon, Steven B., Jackson, Scott A., Schmutz, Jeremy
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/108255
Acceso en línea:http://hdl.handle.net/11336/108255
Access Level:acceso abierto
Palabra clave:ARACHIS HYPOGAEA
GENOME
SEGMENTAL ALLOTETRAPLOID
https://purl.org/becyt/ford/4.4
https://purl.org/becyt/ford/4
Descripción
Sumario:Like many other crops, the cultivated peanut (Arachis hypogaea L.) is of hybrid origin and has a polyploid genome that contains essentially complete sets of chromosomes from two ancestral species. Here we report the genome sequence of peanut and show that after its polyploid origin, the genome has evolved through mobile-element activity, deletions and by the flow of genetic information between corresponding ancestral chromosomes (that is, homeologous recombination). Uniformity of patterns of homeologous recombination at the ends of chromosomes favors a single origin for cultivated peanut and its wild counterpart A. monticola. However, through much of the genome, homeologous recombination has created diversity. Using new polyploid hybrids made from the ancestral species, we show how this can generate phenotypic changes such as spontaneous changes in the color of the flowers. We suggest that diversity generated by these genetic mechanisms helped to favor the domestication of the polyploid A. hypogaea over other diploid Arachis species cultivated by humans.

Similares en LA Referencia