Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution.

Orton LM, Fitzek E, Feng X, Grayburn WS, Mower JP, Liu K, Zhang C, Duvall MR, Yin Y (2020)
Journal of experimental botany.

Zeitschriftenaufsatz | E-Veröff. vor dem Druck | Englisch
 
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Autor*in
Orton, Lauren M; Fitzek, ElisabethUniBi; Feng, Xuehuan; Grayburn, W Scott; Mower, Jeffrey P; Liu, Kan; Zhang, Chi; Duvall, Melvin R; Yin, Yanbin
Abstract / Bemerkung
The complete chloroplast and mitochondrial genomes of Charophyta have shed new light on the land plant terrestrialization. Here, we reported the organellar genomes of the Zygnema circumcarinatum strain UTEX 1559, and a comparative genomics investigation of 33 plastomes and 18 mitogenomes of Chlorophyta, Charophyta (including UTEX 1559 and its conspecific relative SAG 698-1a), and Embryophyta. Gene presence/absence was determined across these plastomes and mitogenomes. A comparison between the plastomes of UTEX 1559 (157,548 bp) and SAG 698-1a (165,372 bp) revealed very similar gene contents, but substantial genome rearrangements. Surprisingly, the two plastomes share only 85.69% nucleotide sequence identity. The UTEX 1559 mitogenome size is 215,954 bp, the largest among all sequenced Charophyta. Interestingly, this large mitogenome contains a 50 kb region without homology to any other organellar genomes, which is flanked by two 86 bp direct repeats and contains 15 open reading frames (ORFs). These ORFs have significant homology to proteins from bacteria and plants with functions such as primase, RNA polymerase and DNA polymerase. We conclude that (i) the previously published SAG 698-1a plastome is likely from a different Zygnema species, and (ii) the 50 kb region in the UTEX 1559 mitogenome might be recently acquired as a mobile element. © The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissions@oup.com.
Erscheinungsjahr
2020
Zeitschriftentitel
Journal of experimental botany
Seite(n)
3361-3373
eISSN
1460-2431
Page URI
https://pub.uni-bielefeld.de/record/2942750

Zitieren

Orton LM, Fitzek E, Feng X, et al. Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution. Journal of experimental botany. 2020.
Orton, L. M., Fitzek, E., Feng, X., Grayburn, W. S., Mower, J. P., Liu, K., Zhang, C., et al. (2020). Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution. Journal of experimental botany. doi:10.1093/jxb/eraa149
Orton, L. M., Fitzek, E., Feng, X., Grayburn, W. S., Mower, J. P., Liu, K., Zhang, C., Duvall, M. R., and Yin, Y. (2020). Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution. Journal of experimental botany.
Orton, L.M., et al., 2020. Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution. Journal of experimental botany.
L.M. Orton, et al., “Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution.”, Journal of experimental botany, 2020.
Orton, L.M., Fitzek, E., Feng, X., Grayburn, W.S., Mower, J.P., Liu, K., Zhang, C., Duvall, M.R., Yin, Y.: Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution. Journal of experimental botany. (2020).
Orton, Lauren M, Fitzek, Elisabeth, Feng, Xuehuan, Grayburn, W Scott, Mower, Jeffrey P, Liu, Kan, Zhang, Chi, Duvall, Melvin R, and Yin, Yanbin. “Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution.”. Journal of experimental botany (2020).

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