000118832 001__ 118832
000118832 005__ 20240319081009.0
000118832 0247_ $$2doi$$a10.3389/fpls.2022.901733
000118832 0248_ $$2sideral$$a130059
000118832 037__ $$aART-2022-130059
000118832 041__ $$aeng
000118832 100__ $$aMoreno-Aguilar, M.$$uUniversidad de Zaragoza
000118832 245__ $$aEvolutionary dynamics of the repeatome explains contrasting differences in genome sizes and hybrid and polyploid origins of grass loliinae lineages
000118832 260__ $$c2022
000118832 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118832 5203_ $$aThe repeatome is composed of diverse families of repetitive DNA that keep signatures on the historical events that shaped the evolution of their hosting species. The cold seasonal Loliinae subtribe includes worldwide distributed taxa, some of which are the most important forage and lawn species (fescues and ray-grasses). The Loliinae are prone to hybridization and polyploidization. It has been observed a striking two-fold difference in genome size between the broad-leaved (BL) and fine-leaved (FL) Loliinae diploids and a general trend of genome reduction of some high polyploids. We have used genome skimming data to uncover the composition, abundance, and potential phylogenetic signal of repetitive elements across 47 representatives of the main Loliinae lineages. Independent and comparative analyses of repetitive sequences and of 5S rDNA loci were performed for all taxa under study and for four evolutionary Loliinae groups Loliinae, Broad-leaved (BL), Fine-leaved (FL), and Schedonorus lineages]. Our data showed that the proportion of the genome covered by the repeatome in the Loliinae species was relatively high (average ~ 51.8%), ranging from high percentages in some diploids (68.7%) to low percentages in some high-polyploids (30.7%), and that changes in their genome sizes were likely caused by gains or losses in their repeat elements. Ty3-gypsy Retand and Ty1-copia Angela retrotransposons were the most frequent repeat families in the Loliinae although the relatively more conservative Angela repeats presented the highest correlation of repeat content with genome size variation and the highest phylogenetic signal of the whole repeatome. By contrast, Athila retrotransposons presented evidence of recent proliferations almost exclusively in the Lolium clade. The repeatome evolutionary networks showed an overall topological congruence with the nuclear 35S rDNA phylogeny and a geographic-based structure for some lineages. The evolution of the Loliinae repeatome suggests a plausible scenario of recurrent allopolyploidizations followed by diploidizations that generated the large genome sizes of BL diploids as well as large genomic rearrangements in highly hybridogenous lineages that caused massive repeatome and genome contractions in the Schedonorus and Aulaxyper polyploids. Our study has contributed to disentangling the impact of the repeatome dynamics on the genome diversification and evolution of the Loliinae grasses. Copyright © 2022 Moreno-Aguilar, Inda, Sánchez-Rodríguez, Arnelas and Catalán.
000118832 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FSE/A01-20R$$9info:eu-repo/grantAgreement/EUR/ERASMUS/2019-1-ES01-KA107-062605
000118832 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000118832 590__ $$a5.6$$b2022
000118832 592__ $$a1.231$$b2022
000118832 591__ $$aPLANT SCIENCES$$b27 / 239 = 0.113$$c2022$$dQ1$$eT1
000118832 593__ $$aPlant Science$$c2022$$dQ1
000118832 594__ $$a7.1$$b2022
000118832 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118832 700__ $$0(orcid)0000-0002-1214-375X$$aInda, L. A.$$uUniversidad de Zaragoza
000118832 700__ $$aSánchez-Rodríguez, A.
000118832 700__ $$aArnelas, I.
000118832 700__ $$0(orcid)0000-0001-7793-5259$$aCatalán, P.$$uUniversidad de Zaragoza
000118832 7102_ $$15011$$2063$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Botánica
000118832 773__ $$g13 (2022), 901733 [22 pp]$$pFront. plant sci.$$tFrontiers in Plant Science$$x1664-462X
000118832 8564_ $$s6242129$$uhttps://zaguan.unizar.es/record/118832/files/texto_completo.pdf$$yVersión publicada
000118832 8564_ $$s2473705$$uhttps://zaguan.unizar.es/record/118832/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118832 909CO $$ooai:zaguan.unizar.es:118832$$particulos$$pdriver
000118832 951__ $$a2024-03-18-14:57:16
000118832 980__ $$aARTICLE