Veronico P, Jones J, Di Vito M, De Giorgi C
Dipartimento di Biochimica e Biologia Molecolare, Universita di Bari, Italy.
FEBS Lett. 2001 Nov 23;508(3):470-4. doi: 10.1016/s0014-5793(01)03132-5.
Analysis of a genomic fragment from the plant parasitic nematode Meloidogyne artiellia revealed the presence of a gene which, in bacteria, is involved in the formation of polyglutamate capsule. Searching of various databases, including the Caenorhabditis elegans genome sequence and the large EST datasets from a variety of parasitic nematodes, showed that no similar genes have been identified in other nematodes or in any other eukaryotic organisms. The M. artiellia gene has a typical eukaryotic structure and its mRNA is present in the intestine. The gene is expressed in all life cycle stages tested. These findings demonstrate horizontal gene transfer may be important in catalyzing the diversification of nematode lineages.
对植物寄生线虫南方根结线虫（Meloidogyne artiellia）的一个基因组片段进行分析后发现，存在一个基因，该基因在细菌中参与聚谷氨酸荚膜的形成。对包括秀丽隐杆线虫（Caenorhabditis elegans）基因组序列以及来自多种寄生线虫的大型EST数据集在内的各种数据库进行检索后发现，在其他线虫或任何其他真核生物中均未鉴定出类似基因。南方根结线虫基因具有典型的真核结构，其mRNA存在于肠道中。该基因在所有测试的生命周期阶段均有表达。这些发现表明水平基因转移可能在促进线虫谱系多样化方面具有重要作用。
