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- 2019
Remarkable variation of ribosomal DNA organization and copy number in gnetophytes, a distinct lineage of gymnospermsDOI: 10.1093/aob/mcy172 Keywords: Gnetophytes, rDNA organization, chromosome evolution, high-throughput sequencing, concerted evolution, pseudogenes, intragenomic diversity Abstract: Gnetophytes, comprising the genera Ephedra, Gnetum and Welwitschia, are an understudied, enigmatic lineage of gymnosperms with a controversial phylogenetic relationship to other seed plants. Here we examined the organization of ribosomal DNA (rDNA) across representative species
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