Publications

Authors:

Scalabrin, Simone; Magris, Gabriele; Liva, Mario; Vitulo, Nicola; Vidotto, Michele; Scaglione, Davide; Del Terra, Lorenzo; Ruosi, Manuela Rosanna; Navarini, Luciano; Pellegrino, Gloria; Berny Mier y Teran, Jorge Carlos; Toniutti, Lucile; Suggi Liverani, Furio; Cerutti, Mario; Di Gaspero, Gabriele; Morgante, Michele

Title:

A chromosome-scale assembly reveals chromosomal aberrations and exchanges generating genetic diversity in Coffea arabica germplasm

Year:

2024

Type of item:

Articolo in Rivista

Tipologia ANVUR:

Articolo su rivista

Language:

Inglese

Referee:

No

Name of journal:

NATURE COMMUNICATIONS

ISSN of journal:

2041-1723

N° Volume:

15

Number or Folder:

1

Page numbers:

1-15

Keyword:

Coffea arabica, genome sequencing, chromosomal aberrations

Short description of contents:

: In order to better understand the mechanisms generating genetic diversity in the recent allotetraploid species Coffea arabica, here we present a chromosome-level assembly obtained with long read technology. Two genomic compartments with different structural and functional properties are identified in the two homoeologous genomes. The resequencing data from a large set of accessions reveals low intraspecific diversity in the center of origin of the species. Across a limited number of genomic regions, diversity increases in some cultivated genotypes to levels similar to those observed within one of the progenitor species, Coffea canephora, presumably as a consequence of introgressions deriving from the so-called Timor hybrid. It also reveals that, in addition to few, early-occurring exchanges between homoeologous chromosomes, there are numerous recent chromosomal aberrations including aneuploidies, deletions, duplications and exchanges. These events are still polymorphic in the germplasm and could represent a fundamental source of genetic variation in such a lowly variable species.

Product ID:

137566

Handle IRIS:

11562/1118866

Last Modified:

January 30, 2025

Bibliographic citation:

Scalabrin, Simone; Magris, Gabriele; Liva, Mario; Vitulo, Nicola; Vidotto, Michele; Scaglione, Davide; Del Terra, Lorenzo; Ruosi, Manuela Rosanna; Navarini, Luciano; Pellegrino, Gloria; Berny Mier y Teran, Jorge Carlos; Toniutti, Lucile; Suggi Liverani, Furio; Cerutti, Mario; Di Gaspero, Gabriele; Morgante, Michele, A chromosome-scale assembly reveals chromosomal aberrations and exchanges generating genetic diversity in Coffea arabica germplasm «NATURE COMMUNICATIONS» , vol. 15 , n. 1 , 2024 , pp. 1-15

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