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Genome analyses reveal the hybrid origin of the staple crop white Guinea yam (Dioscorea rotundata)

Sugihara, Yu ; Darkwa, Kwabena ; Yaegashi, Hiroki ; Natsume, Satoshi ; Shimizu, Motoki ; Abe, Akira ; Hirabuchi, Akiko ; Ito, Kazue ; Oikawa, Kaori ; Tamiru-Oli, Muluneh ; Ohta, Atsushi ; Matsumoto, Ryo ; Agre, Paterne ; De Koeyer, David ; Pachakkil, Babil ; Yamanaka, Shinsuke ; Muranaka, Satoru ; Takagi, Hiroko ; White, Ben ; Asiedu, Robert ; Innan, Hideki ; Asfaw, Asrat ; Adebola, Patrick ; Terauchi, Ryohei

Proceedings of the National Academy of Sciences - PNAS, 2020-12, Vol.117 (50), p.31987-31992 [Periódico revisado por pares]

United States: National Academy of Sciences

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Título:
Genome analyses reveal the hybrid origin of the staple crop white Guinea yam (Dioscorea rotundata)
Autor: Sugihara, Yu ; Darkwa, Kwabena ; Yaegashi, Hiroki ; Natsume, Satoshi ; Shimizu, Motoki ; Abe, Akira ; Hirabuchi, Akiko ; Ito, Kazue ; Oikawa, Kaori ; Tamiru-Oli, Muluneh ; Ohta, Atsushi ; Matsumoto, Ryo ; Agre, Paterne ; De Koeyer, David ; Pachakkil, Babil ; Yamanaka, Shinsuke ; Muranaka, Satoru ; Takagi, Hiroko ; White, Ben ; Asiedu, Robert ; Innan, Hideki ; Asfaw, Asrat ; Adebola, Patrick ; Terauchi, Ryohei
Assuntos: Biological Sciences ; Chromosomes ; Chromosomes, Plant - genetics ; Crops ; Crops, Agricultural - genetics ; Dioscorea - genetics ; Dioscorea rotundata ; DNA, Plant - genetics ; Domestication ; Genome, Plant ; Genomes ; Guinea ; Hybridization, Genetic ; Nucleotide sequence ; Phylogeny ; Plant breeding ; Plant Breeding - methods ; Plant Tubers ; Polymorphism, Single Nucleotide ; Rainforests ; Savannahs ; Sex Chromosomes - genetics ; Species ; Subgroups
É parte de: Proceedings of the National Academy of Sciences - PNAS, 2020-12, Vol.117 (50), p.31987-31992
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
Author contributions: M.T.-O., R.M., D.D.K., H.T., R.A., A. Asfaw, P. Adebola, and R.T. designed research; Y.S., K.D., H.Y., S.N., M.S., A. Abe, A.H., K.I., K.O., M.T.-O., R.M., P. Agre, D.D.K., B.P., S.Y., S.M., H.T., B.W., R.A., H.I., A. Asfaw, P. Adebola, and R.T. performed research; Y.S., H.Y., S.N., M.S., A. Abe, A.H., K.I., K.O., A.O., R.M., P. Agre, D.D.K., B.P., S.Y., B.W., and H.I. contributed new reagents/analytic tools; Y.S., H.Y., S.N., M.S., A. Abe, A.O., R.M., B.P., H.T., B.W., R.A., H.I., A. Asfaw, P. Adebola, and R.T. analyzed data; and Y.S., M.T.-O., R.A., H.I., A. Asfaw, P. Adebola, and R.T. wrote the paper.
Edited by Loren H. Rieseberg, University of British Columbia, Vancouver, BC, Canada, and approved November 2, 2020 (received for review July 27, 2020)
Descrição: White Guinea yam (Dioscorea rotundata) is an important staple tuber crop in West Africa. However, its origin remains unclear. In this study, we resequenced 336 accessions of white Guinea yam and compared them with the sequences of wild Dioscorea species using an improved reference genome sequence of D. rotundata. In contrast to a previous study suggesting that D. rotundata originated from a subgroup of Dioscorea praehensilis, our results suggest a hybrid origin of white Guinea yam from crosses between the wild rainforest species D. praehensilis and the savannah-adapted species Dioscorea abyssinica. We identified a greater genomic contribution from D. abyssinica in the sex chromosome of Guinea yam and extensive introgression around the SWEETIE gene. Our findings point to a complex domestication scenario for Guinea yam and highlight the importance of wild species as gene donors for improving this crop through molecular breeding.
Editor: United States: National Academy of Sciences
Idioma: Inglês

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Genome analyses reveal the hybrid origin of the staple crop white Guinea yam (Dioscorea rotundata)

United States: National Academy of Sciences

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