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<p><i>Festuca</i> L. is a perennial plant of the Poaceae family, known for its good palatability and strong tolerance. The characteristics of the chloroplast genomes of six native <i>Festuca</i> species on the Qinghai-Tibet Plateau were analyzed, including four <i>F. sinensis</i> germplasms from Gansu (1), Qinghai (57), Sichuan (111), and Tibet (10–85); <i>F. rubra</i> subsp. <i>arctica</i>; <i>F. kryloviana</i>; <i>F. nitidula</i>; <i>F. valesiaca</i> subsp. sulcata; and <i>F. elata</i>. The chloroplast genome consists of 127 genes, including 4 ribosomal RNA (rRNA) genes, 38 transfer RNA (tRNA) genes, and 83 protein-coding genes. The number of identified SSRs based on 16 shared optimal ciphers of the four <i>F. sinensis</i> germplasms were 48, 50, 49, and 38, respectively, with the majority being single nucleotide repeat sequences. The phylogenetic tree shows that <i>F. nitidula</i>, <i>F. elata</i>, and one germplasm of <i>F. sinensis</i> from Tibet are grouped into the same clade, while three germplasms of <i>F. sinensis</i> from Gansu, Qinghai, and Sichuan are grouped into another clade. <i>F. valesiaca</i> subsp. <i>sulcata</i>, <i>F. ovina</i>, and <i>F. brevipila</i> are grouped into the same clade. <i>F. rubra</i> subsp. arctica and <i>F. rubra</i> are clustered into one branch. This study clarifies the taxonomy of <i>F</i>. <i>sinensis</i> within the genus, providing a reference for subsequent research on the genetic diversity, genetic structure, and phylogeny of <i>Festuca</i> plants.</p>

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Enhancing Festuca chloroplast genome resources

  • 期刊论文

  • 发表日期：

    2025年5月27日

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  • Junying Liu,
  • Pei Tian

摘要

Festuca L. is a perennial plant of the Poaceae family, known for its good palatability and strong tolerance. The characteristics of the chloroplast genomes of six native Festuca species on the Qinghai-Tibet Plateau were analyzed, including four F. sinensis germplasms from Gansu (1), Qinghai (57), Sichuan (111), and Tibet (10–85); F. rubra subsp. arctica; F. kryloviana; F. nitidula; F. valesiaca subsp. sulcata; and F. elata. The chloroplast genome consists of 127 genes, including 4 ribosomal RNA (rRNA) genes, 38 transfer RNA (tRNA) genes, and 83 protein-coding genes. The number of identified SSRs based on 16 shared optimal ciphers of the four F. sinensis germplasms were 48, 50, 49, and 38, respectively, with the majority being single nucleotide repeat sequences. The phylogenetic tree shows that F. nitidula, F. elata, and one germplasm of F. sinensis from Tibet are grouped into the same clade, while three germplasms of F. sinensis from Gansu, Qinghai, and Sichuan are grouped into another clade. F. valesiaca subsp. sulcata, F. ovina, and F. brevipila are grouped into the same clade. F. rubra subsp. arctica and F. rubra are clustered into one branch. This study clarifies the taxonomy of F. sinensis within the genus, providing a reference for subsequent research on the genetic diversity, genetic structure, and phylogeny of Festuca plants.