A chromosome-scale reference of Chenopodium watsonii helps elucidate relationships within the North American A-genome Chenopodium species and with quinoa.

0577138 - BÚ 2024 RIV US eng J - Článek v odborném periodiku
Young, L. A. - Maughan, P. J. - Jarvis, D. E. - Hunt, S. P. - Warner, H. C. - Durrant, K. K. - Kohlert, T. - Curti, R. N. - Bertero, D. - Filippi, G. A. - Pospíšilíková, T. - Krak, Karol - Mandák, Bohumil - Jellen, E.N.
A chromosome-scale reference of Chenopodium watsonii helps elucidate relationships within the North American A-genome Chenopodium species and with quinoa.
Plant Genome. Roč. 16, č. 3 (2023), č. článku e20349. E-ISSN 1940-3372
Institucionální podpora: RVO:67985939
Klíčová slova: Chenopodium watsonii * phylogeny * chromosome-scale reference
Obor OECD: Plant sciences, botany
Impakt faktor: 4.2, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1002/tpg2.20349

We assembled a reference genome for Sonoran A-genome Chenopodium watsonii due to fruit morphological and high (>99.3%) preliminary sequence-match similarities with Chenopodium quinoa, along with its well-established taxonomic status. The genome was assembled into 1377 scaffolds spanning 547.76 Mb (N50 = 55.14 Mb, L50 = 5), with 94% comprised in nine chromosome-scale scaffolds and 93.9% Benchmarking Universal Single-Copy Orthologs genes identified as single copy and 3.4% as duplicated. A high degree of synteny, with minor and mostly telomeric rearrangements, was found when comparing this taxon with the previously reported genome of South American C. pallidicaule and the A-subgenome chromosomes of C. quinoa. Phylogenetic analysis was performed using 10,588 single-nucleotide polymorphisms generated by resequencing a panel of 41 New World AA diploid accessions and the Eurasian H-genome diploid Chenopodium vulvaria, along with three AABB tetraploids previously sequenced. Phylogenetic analysis of these 32 taxa positioned the psammophyte Chenopodium subglabrum on the branch containing A-genome sequences from the ATGC. We also present evidence for long-range dispersal of Chenopodium diploids between North and South America.
Trvalý link: https://hdl.handle.net/11104/0349065