Abstract：
:The discovery of the insertion of IbT-DNA1 and IbT-DNA2 into the cultivated (hexaploid) sweetpotato [Ipomoea batatas (L.) Lam.] genome constitutes a clear example of an ancient event of Horizontal Gene Transfer (HGT). However, it remains unknown whether the acquisition of both IbT-DNAs by the cultivated sweetpotato occurred before or after its speciation. Therefore, this study aims to evaluate the presence of IbT-DNAs in the genomes of sweetpotato's wild relatives belonging to the taxonomic group series Batatas. Both IbT-DNA1 and IbT-DNA2 were found in tetraploid I. batatas (L.) Lam. and had highly similar sequences and at the same locus to those found in the cultivated sweetpotato. Moreover, IbT-DNA1 was also found in I. cordatotriloba and I. tenuissima while IbT-DNA2 was detected in I. trifida. This demonstrates that genome integrated IbT-DNAs are not restricted to the cultivated sweetpotato but are also present in tetraploid I. batatas and other related species.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Quispe-Huamanquispe DG,Gheysen G,Yang J,Jarret R,Rossel G,Kreuze JFdoi
10.1038/s41598-019-48691-3subject
Has Abstractpub_date
2019-08-29 00:00:00pages
12584issue
1issn
2045-2322pii
10.1038/s41598-019-48691-3journal_volume
9pub_type
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