Scholarlink

Background <p>The genus <i>Musa</i>, belonging to the family Musaceae, includes important horticultural and food crops such as bananas and plantains. In this study, we sequenced and analyzed the complete chloroplast genomes of four wild Indian <i>Musa</i> taxa: <i>M. balbisiana</i> var. <i>andamanica</i>, <i>M. indandamanensis</i>, <i>M. paramjitiana</i>, and <i>M. sikkimensis</i>, for ascertaining their taxonomic status and phylogenetic relationship.</p> Results <p>The chloroplast genomes ranged from 169,485&#xa0;bp to 169,861&#xa0;bp in length and exhibited a typical quadripartite structure with a pair of inverted repeat regions separated by a large single copy and a small single copy region. The genomes encoded 113 unique genes, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. Comparative analyses revealed a relatively conserved genome structure, with coding regions being less variable than noncoding regions. Eleven divergent hotspots were identified that could serve as potential molecular markers for species identification and phylogenetic studies. Codon usage analysis revealed a preference for A/T-ending codons, and most protein-coding genes were under purifying selection. Phylogenetic analyses based on the complete chloroplast genomes and various regions (LSC, SSC, IR, and CDS) supported the conspecific status of <i>M. paramjitiana</i> and <i>M. balbisiana</i> var. <i>andamanica</i> with <i>M. balbisiana</i>.</p> Conclusions <p>The results provide valuable insights into the evolutionary relationships and taxonomic classification of wild <i>Musa</i> species and highlight the potential of chloroplast genomes as tools for species identification and phylogenetic studies in the genus <i>Musa</i>.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative analysis the complete chloroplast genomes in wild Musa species of India for its phylogenetic and taxonomic implications

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月17日

查看全文
  • Pooja Pathania,
  • Rithesh B.N.,
  • Gaddam Prasanna Kumar,
  • Anuradha Agrawal,
  • S. Rajkumar

摘要

Background

The genus Musa, belonging to the family Musaceae, includes important horticultural and food crops such as bananas and plantains. In this study, we sequenced and analyzed the complete chloroplast genomes of four wild Indian Musa taxa: M. balbisiana var. andamanica, M. indandamanensis, M. paramjitiana, and M. sikkimensis, for ascertaining their taxonomic status and phylogenetic relationship.

Results

The chloroplast genomes ranged from 169,485 bp to 169,861 bp in length and exhibited a typical quadripartite structure with a pair of inverted repeat regions separated by a large single copy and a small single copy region. The genomes encoded 113 unique genes, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. Comparative analyses revealed a relatively conserved genome structure, with coding regions being less variable than noncoding regions. Eleven divergent hotspots were identified that could serve as potential molecular markers for species identification and phylogenetic studies. Codon usage analysis revealed a preference for A/T-ending codons, and most protein-coding genes were under purifying selection. Phylogenetic analyses based on the complete chloroplast genomes and various regions (LSC, SSC, IR, and CDS) supported the conspecific status of M. paramjitiana and M. balbisiana var. andamanica with M. balbisiana.

Conclusions

The results provide valuable insights into the evolutionary relationships and taxonomic classification of wild Musa species and highlight the potential of chloroplast genomes as tools for species identification and phylogenetic studies in the genus Musa.