Assembly and Comparative Analysis of the Complete Mitochondrial Genome of Two Species of Calla Lilies (Zantedeschia, Araceae).
Assembly and Comparative Analysis of the Complete Mitochondrial Genome of Two Species of Calla Lilies (Zantedeschia, Araceae).
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DOI：
10.3390/ijms24119566
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发表时间：
2023-05-31
影响因子：
5.6
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中科院分区：
文献类型：
--
作者：
本研究对马蹄莲属马蹄莲Zantedeschia aethiopica Spreng.和马蹄莲佩里。，第一次被收集和比较。玉米栽培种aethiopica mt基因组组装成一条环状染色体，长度为675，575 bp，GC含量为45.85%。相比之下，Z.飞机草mt基因组由双环染色体（第1和第2染色体）组成，长度为719，764bp，GC含量为45.79%。两个有丝分裂基因组具有相似的基因组成，在Z. aethiopica和Z. odorata，分别。分析了两种玉米的密码子使用、序列重复、基因从叶绿体到线粒体的迁移以及RNA编辑。aethiopica和Z. odorata山基因组基于这两个物种和其他30个分类群的mt基因组的系统发育检查提供了对它们进化关系的见解。此外，还对Z.结果表明，该物种具有母系线粒体遗传。本研究为马蹄莲有丝分裂基因组进化和分子育种研究提供了宝贵的基因组资源。
In this study, the mitochondrial genomes of two calla species, Zantedeschia aethiopica Spreng. and Zantedeschia odorata Perry., were assembled and compared for the first time. The Z. aethiopica mt genome was assembled into a single circular chromosome, measuring 675,575 bp in length with a 45.85% GC content. In contrast, the Z. odorata mt genome consisted of bicyclic chromosomes (chromosomes 1 and 2), measuring 719,764 bp and exhibiting a 45.79% GC content. Both mitogenomes harbored similar gene compositions, with 56 and 58 genes identified in Z. aethiopica and Z. odorata, respectively. Analyses of codon usage, sequence repeats, gene migration from chloroplast to mitochondrial, and RNA editing were conducted for both Z. aethiopica and Z. odorata mt genomes. Phylogenetic examination based on the mt genomes of these two species and 30 other taxa provided insights into their evolutionary relationships. Additionally, the core genes in the gynoecium, stamens, and mature pollen grains of the Z. aethiopica mt genome were investigated, which revealed maternal mitochondrial inheritance in this species. In summary, this study offers valuable genomic resources for future research on mitogenome evolution and the molecular breeding of calla lily.
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