| Abstract Detail
Recent Topics Posters Lee, Bora [1], Roalson, Eric [2], Kim, Sangtae [1]. Long-read NGS sequencing clarified complex structure of a chloroplast genome in Carex lupulina (Cyperaceae). The chloroplast (cp) genome of Carex has extra-ordinary complex structure compared to that of other typical angiosperms. As a first cp genome in Carex, our previous study showed that cp genome of C. siderosticta was extremely large (195 kbps) and has many short internal repeats (>100 bps). In comparison with Typha, one of the basal-group taxa in Poales, there are big structural changes including six large inversions, three translocations, ten gene losses, and one gene duplication (trnfM-CAU). Only a partial assembly was possible in this study with short Illumina reads and the completion of genome sequence has been done with re-sequencing of entire genome region using Sanger method. In this study, we report a cp genome of C. lupulina as another cp genome in Carex based on Nanopore sequencing. Long-reads of Nanopore sequence enables us to reconstruct the complex structure of cp genome of which complete assembly was not possible just using short-read Illumina platform. The size of cp genome of C. lupulina (246 kbp) was the second largest in the reported angiosperm cp genomes. Compared to C. siderosticta, there are two large inverted translocations (ca. 5.2 kbp and 43 kbp) in the large single-copy region. Long-read NGS sequencing in Carex will be a key tool to understand complex cp structural evolution in Carex. Log in to add this item to your schedule
1 - Sungshin Univ., Dept. of Biology, Seoul, Seoul, 01133, Republic of Korea 2 - Washington State University, School Of Biological Sciences, Abelson Hall 339, Pullman, WA, 99164, United States
Keywords: Carex Nanopore Chloroplast.
Presentation Type: Session: P, Recent Topics Posters Location: Arizona Ballroom/Starr Pass Date: Monday, July 29th, 2019 Time: 5:30 PM Number: PRT026 Abstract ID:1403 Candidate for Awards:None |