79076 20191126134631.0 doi 10.1111/nph.14926 sideral 106431 ART-2018-106431 eng (orcid)0000-0002-4845-4242 Sancho, R. Comparative plastome genomics and phylogenomics of Brachypodium: flowering time signatures, introgression and recombination in recently diverged ecotypes 2018 Access copy available to the general public Unrestricted Few pan-genomic studies have been conducted in plants, and none of them have focused on the intraspecific diversity and evolution of their plastid genomes. We address this issue in Brachypodium distachyon and its close relatives B. stacei and B. hybridum, for which a large genomic data set has been compiled. We analyze inter- and intraspecific plastid comparative genomics and phylogenomic relationships within a family-wide framework. Major indel differences were detected between Brachypodium plastomes. Within B. distachyon, we detected two main lineages, a mostly Extremely Delayed Flowering (EDF+) clade and a mostly Spanish (S+) – Turkish (T+) clade, plus nine chloroplast capture and two plastid DNA (ptDNA) introgression and micro-recombination events. Early Oligocene (30.9 million yr ago (Ma)) and Late Miocene (10.1 Ma) divergence times were inferred for the respective stem and crown nodes of Brachypodium and a very recent Mid-Pleistocene (0.9 Ma) time for the B. distachyon split. Flowering time variation is a main factor driving rapid intraspecific divergence in B. distachyon, although it is counterbalanced by repeated introgression between previously isolated lineages. Swapping of plastomes between the three different genomic groups, EDF+, T+, S+, probably resulted from random backcrossing followed by stabilization through selection pressure. info:eu-repo/grantAgreement/ES/DGA/FSE info:eu-repo/grantAgreement/ES/MINECO/CGL2012-39953-C02-01 info:eu-repo/grantAgreement/ES/MINECO/CGL2016-79790-P info:eu-repo/grantAgreement/ES/MINECO/CSIC13-4E-2490 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 7.299 2018 PLANT SCIENCES 8 / 228 = 0.035 2018 Q1 T1 3.788 2018 Plant Science 2018 Q1 Physiology 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Cantalapiedra, C.P. (orcid)0000-0002-7734-8481 López-Alvarez, D. Gordon, S.P. Vogel, J.P. (orcid)0000-0001-7793-5259 Catalán, P. Universidad de Zaragoza (orcid)0000-0002-5462-907X Contreras-Moreira, B. Universidad de Zaragoza 1002 060 Universidad de Zaragoza Dpto. Bioq.Biolog.Mol. Celular Área Bioquímica y Biolog.Mole. 5011 063 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Área Botánica 218, 4 (2018), 1631-1644 New phytol. New Phytologist 0028-646X 813679 http://zaguan.unizar.es/record/79076/files/texto_completo.pdf Postprint 111254 http://zaguan.unizar.es/record/79076/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:79076 articulos driver 2019-11-26-13:41:22 ARTICLE