Browse

Evolution of the large genome in Capsicum annuum occurred through accumulation of single-type long terminal repeat retrotransposons and their derivatives

Cited 38 time in Web of Science Cited 37 time in Scopus
Authors
Park, Minkyu; Park, Jongsun; Kim, Seungill; Kwon, Jin-Kyung; Park, Hye Mi; Bae, Ik Hyun; Yang, Tae-Jin; Lee, Yong-Hwan; Kang, Byoung-Cheorl; Choi, Doil
Issue Date
2012-03
Publisher
Society for Experimental Biology
Citation
The Plant Journal Vol.69 No.6, pp. 1018-1029
Keywords
복합학genome expansionheterochromatinLTR retrotransposonCapsicum annuumtandem repeat
Abstract
Although plant genome sizes are extremely diverse, the mechanism underlying the expansion of huge genomes that did not experience whole-genome duplication has not been elucidated. The pepper, Capsicum annuum, is an excellent model for studies of genome expansion due to its large genome size (2700 Mb) and the absence of whole genome duplication. As most of the pepper genome structure has been identified as constitutive heterochromatin, we investigated the evolution of this region in detail. Our findings show that the constitutive heterochromatin in pepper was actively expanded 20.07.5 million years ago through a massive accumulation of single-type Ty3/Gypsy-like elements that belong to the Del subgroup. Interestingly, derivatives of the Del elements, such as non-autonomous long terminal repeat retrotransposons and long-unit tandem repeats, played important roles in the expansion of constitutive heterochromatic regions. This expansion occurred not only in the existing heterochromatic regions but also into the euchromatic regions. Furthermore, our results revealed a repeat of unit length 1824 kb. This repeat was found not only in the pepper genome but also in the other solanaceous species, such as potato and tomato. These results represent a characteristic mechanism for large genome evolution in plants.
ISSN
0960-7412
Language
English
URI
https://hdl.handle.net/10371/83376
DOI
https://doi.org/10.1111/j.1365-313X.2011.04851.x
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Agriculture and Life Sciences (농업생명과학대학)Dept. of Food and Animal Biotechnology (식품·동물생명공학부)Journal Papers (저널논문_식품·동물생명공학부)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse