Novel clades of chromodomain-containing Gypsy LTR retrotransposons from mosses (Bryophyta)
Novel clades of chromodomain-containing Gypsy LTR retrotransposons from mosses (Bryophyta)
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DOI：
10.1111/j.1365-313x.2008.03621.x
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发表时间：
2008-11-01
期刊：
影响因子：
7.2
通讯作者：
Blinov, Alexander
中科院分区：
文献类型：
--
作者：
Novikova, Olga;Mayorov, Vladimir;Blinov, Alexander
反转录转座子是植物基因组的主要组成部分。含有Gypsy长末端重复序列（LTR）的染色体结构域反转录转座子广泛分布于真核生物中。在维管植物中已知四个不同的含有染色质结构域的吉普赛逆转子分支：Reina、CRM、Galadriel和Tekay。与此同时，几乎没有什么是已知的剧目的LTR逆转录转座子在brabiete基因组。我们已经结合了搜索含染色体结构域的吉普赛retroelements立碗藓基因组序列和不同的苔藓物种的实验研究。基于计算机的挖掘含有染色体结构域的LTR反转录转座子使我们能够描述立碗藓的四种不同元素。四个新的进化枝被确定为在进化上不同于其他植物的含染色体结构域的吉普赛LTR反转录转座子。
Retrotransposons are the major component of plant genomes. Chromodomain-containing Gypsy long terminal repeat (LTR) retrotransposons are widely distributed in eukaryotes. Four distinct clades of chromodomain-containing Gypsy retroelements are known from the vascular plants: Reina, CRM, Galadriel and Tekay. At the same time, almost nothing is known about the repertoire of LTR retrotransposons in bryophyte genomes. We have combined a search of chromodomain-containing Gypsy retroelements in Physcomitrella genomic sequences and an experimental investigation of diverse moss species. The computer-based mining of the chromodomain-containing LTR retrotransposons allowed us to describe four different elements from Physcomitrella. Four novel clades were identified that are evolutionarily distinct from the chromodomain-containing Gypsy LTR retrotransposons of other plants.