The Linum usitatissimum L. plastome reveals atypical structural evolution, new editing sites, and the phylogenetic position of Linaceae within Malpighiales

dc.creatorSantana Lopes, Amanda de
dc.creatorPacheco, Túlio Gomes
dc.creatorSantos, Karla Gasparini dos
dc.creatorVieira, Leila do Nascimento
dc.creatorGuerra, Miguel Pedro
dc.creatorNodari, Rubens Onofre
dc.creatorSouza, Emanuel Maltempi de
dc.creatorPedrosa, Fábio de Oliveira
dc.creatorRogalski, Marcelo
dc.date2018-05-16T19:00:25Z
dc.date2018-05-16T19:00:25Z
dc.date2017-10-30
dc.date.accessioned2023-09-27T21:06:42Z
dc.date.available2023-09-27T21:06:42Z
dc.identifier1432203X
dc.identifierhttp://dx.doi.org/10.1007/s00299-017-2231-z
dc.identifierhttp://www.locus.ufv.br/handle/123456789/19634
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8954781
dc.descriptionFlax (Linum usitatissimum L.) is an economically important crop used as food, feed, and industrial feedstock. It belongs to the Linaceae family, which is noted by high morphological and ecological diversity. Here, we reported the complete sequence of flax plastome, the first species within Linaceae family to have the plastome sequenced, assembled and characterized in detail. The plastome of flax is a circular DNA molecule of 156,721 bp with a typical quadripartite structure including two IRs of 31,990 bp separating the LSC of 81,767 bp and the SSC of 10,974 bp. It shows two expansion events from IRB to LSC and from IRB to SSC, and a contraction event in the IRA-LSC junction, which changed significantly the size and the gene content of LSC, SSC and IRs. We identified 109 unique genes and 2 pseudogenes (rpl23 and ndhF). The plastome lost the conserved introns of clpP gene and the complete sequence of rps16 gene. The clpP, ycf1, and ycf2 genes show high nucleotide and aminoacid divergence, but they still possibly retain the functionality. Moreover, we also identified 176 SSRs, 20 tandem repeats, and 39 dispersed repeats. We predicted in 18 genes a total of 53 RNA editing sites of which 32 were not found before in other species. The phylogenetic inference based on 63 plastid protein-coding genes of 38 taxa supports three major clades within Malpighiales order. One of these clades has flax (Linaceae) sister to Chrysobalanaceae family, differing from earlier studies that included Linaceae into the euphorbioid clade.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherPlant Cell Reports
dc.relationv. 37, n. 2, p. 307–328, Fevereiro 2018
dc.rightsSpringer-Verlag GmbH Germany
dc.subjectExtranuclear inheritance
dc.subjectRearrangements
dc.subjectGene duplication
dc.subjectPlastid microsatellites
dc.subjectPlastid evolution
dc.titleThe Linum usitatissimum L. plastome reveals atypical structural evolution, new editing sites, and the phylogenetic position of Linaceae within Malpighiales
dc.typeArtigo


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