Results 31 to 40 of about 11,956 (208)

Evolution of Target Specificity in R1 Clade Non-LTR Retrotransposons [PDF]

Molecular Biology and Evolution, 2003
Although most non-long terminal repeat (non-LTR) retrotransposons are inserted throughout the host genome, many non-LTR elements in the R1 clade are inserted into specific sites within the target sequence. Four R1 clade families have distinct target specificity: R1 and RT insert into specific sites of 28S rDNA, and TRAS and SART insert into different ...
Kenji K, Kojima, Haruhiko, Fujiwara
openaire   +2 more sources

Mobile genetic elements – mechanism and consequences of transposition

Journal of Education, Health and Sport, 2017
Retrotransposons represent a significant part of the genome in eukaryote organisms. With DNA transposons, they belong to mobile genetic elements. There are two classes of transposons, DNA transposons and retrotransposons.
Mateusz Wędrowski, Paweł Waśniowski, Ewelina Wędrowska, Joanna Golińska, Elżbieta Piskorska, Walery Żukow   +5 more
doaj   +3 more sources

A specific insertion of a solo-LTR characterizes the Y chromosome of Bryonia dioica (Cucurbitaceae) [PDF]

, 2010
Background: Relatively few species of flowering plants are dioecious and even fewer are known to have sex chromosomes. Current theory posits that homomorphic sex chromosomes, such as found in Bryonia dioica (Cucurbitaceae), offer insight into the early ...
Silber, Martina V., Renner Susanne S, Ryan K Oyama, Oyama Ryan K, Susanne S Renner, Renner, Susanne S., Oyama, Ryan K., Silber Martina V, Martina V Silber   +8 more
core   +1 more source

The non-LTR retrotransposons of Entamoeba histolytica: genomic organization and biology

Molecular Genetics and Genomics, 2022
Genome sequence analysis of Entamoeba species revealed various classes of transposable elements. While E. histolytica and E. dispar are rich in non-long terminal repeat (LTR) retrotransposons, E. invadens contains predominantly DNA transposons. Non-LTR retrotransposons of E.
Devinder Kaur, Mridula Agrahari, Alok Bhattacharya, Sudha Bhattacharya   +3 more
openaire   +2 more sources

Nested plant LTR retrotransposons target specific regions of other elements, while all LTR retrotransposons often target palindromes and nucleosome-occupied regions: in silico study

Mobile DNA, 2019
Background Nesting is common in LTR retrotransposons, especially in large genomes containing a high number of elements. Results We analyzed 12 plant genomes and obtained 1491 pairs of nested and original (pre-existing) LTR retrotransposons.
Pavel Jedlicka, Matej Lexa, Ivan Vanat, Roman Hobza, Eduard Kejnovsky   +4 more
doaj   +1 more source

LTR-LTR ages and terminal branch length ages for LTR retrotransposons.

, 2021
Ages in 10,000 year bins across each of the largest 10 families of each superfamily with at least 10 copies. Left plots (A-D) show LTR-LTR ages, right plots (E-H) show terminal branch length (TBL) ages. (A) all copies, LTR-LTR, (B) RLC families, LTR-LTR,
Nathan M. Springer (7359848), Sarah N. Anderson (7359827), Jeffrey Ross-Ibarra (49029), Michelle C. Stitzer (7359836)   +3 more
core   +1 more source

Mammalian non-LTR retrotransposons: For better or worse, in sickness and in health [PDF]

Genome Research, 2008
Transposable elements (TEs) have shared an exceptionally long coexistence with their host organisms and have come to occupy a significant fraction of eukaryotic genomes. The bulk of the expansion occurring within mammalian genomes has arisen from the activity of type I retrotransposons, which amplify in a “copy-and-paste” fashion through an RNA ...
Victoria P, Belancio, Dale J, Hedges, Prescott, Deininger   +2 more
openaire   +2 more sources

Retrotranspositions in orthologous regions of closely related grass species

BMC Evolutionary Biology, 2006
Background Retrotransposons are commonly occurring eukaryotic transposable elements (TEs). Among these, long terminal repeat (LTR) retrotransposons are the most abundant TEs and can comprise 50–90% of the genome in higher plants.
Swigoňová Zuzana, Du Chunguang, Messing Joachim   +2 more
doaj   +1 more source

Analysis of transposable elements in the genome of Asparagus officinalis from high coverage sequence data. [PDF]

PLoS ONE, 2014
Asparagus officinalis is an economically and nutritionally important vegetable crop that is widely cultivated and is used as a model dioecious species to study plant sex determination and sex chromosome evolution.
Shu-Fen Li, Wu-Jun Gao, Xin-Peng Zhao, Tian-Yu Dong, Chuan-Liang Deng, Long-Dou Lu   +5 more
doaj   +1 more source

Multiple Non-LTR Retrotransposons in the Genome of Arabidopsis thaliana [PDF]

Genetics, 1996
Abstract DNA sequence analysis near the Arabidopsis thaliana AB13 gene revealed the presence of a non-LTR retrotransposon insertion that we have designated Ta11-1. This insertion is 6.2 kb in length and encodes two overlapping reading frames with similarity to non-LTR retrotransposon proteins, including reverse transcriptase.
D A, Wright, N, Ke, J, Smalle, B M, Hauge, H M, Goodman, D F, Voytas   +5 more
openaire   +2 more sources