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首页> 外文期刊>Genomics >Evolutionary dynamics of chloroplast genomes in subfamily Aroideae (Araceae)
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Evolutionary dynamics of chloroplast genomes in subfamily Aroideae (Araceae)

机译：亚家族AROIEEAE（Araceae）中叶绿体基因组的进化动态

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摘要

Aroideae is the largest and most diverse subfamily of the plant family Araceae. Despite its agricultural and horticultural importance, the genomic resources are sparse for this subfamily. Here, we report de novo assembled and fully annotated chloroplast genomes of 13 Aroideae species. The quadripartite chloroplast genomes (size range of 158,177-170,037 bp) are comprised of a large single copy (LSC; 75,594-94,702 bp), a small single copy (SSC; 12,903-23,981 bp) and a pair of inverted repeats (IRs; 25,266-34,840 bp). Notable gene rearrangements and IRs contraction / expansions were found for Anchomanes hookeri and Zantedeschia aethiopica. Codon usage, amino acid frequencies, oligonucleotide repeats, GC contents, and gene features revealed similarities among the 13 species. The number of oligonucleotide repeats was uncorrelated with genome size or phylogenetic position of the species. Phylogenetic analyses corroborated the monophyly of Aroideae but were unable to resolve the positions of Calla and Schismatoglottis.
机译：AROIEEAE是植物家族苜蓿的最大，最多样化的亚家族。尽管其农业和园艺重要性，但这种亚家族的基因组资源稀少。在这里，我们举报了13种Aroideae物种的Novo组装和完全注释的叶绿体基因组。四肢叶绿体基因组（大小范围为158,177-170,037bp）由大单拷贝（LSC; 75,594-94,702bp）组成，小单拷贝（SSC; 12,903-23,981bp）和一对倒重复（IRS; 25,266-34,840 bp）。为锚钩Hookeri和Zantedeschia Aethiopica发现了标记的基因重排和IRS收缩/扩展。密码子使用，氨基酸频率，寡核苷酸重复，GC含量和基因特征在13种中揭示了相似之处。寡核苷酸重复的数量与物种的基因组大小或系统发育位置不相关。系统发育分析证实了AROIEEAE的单层，但无法解决CALLA和SCHISMATOGLOTTIS的位置。

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