The complete chloroplast genome of 'biasong' (Citrus micrantha Wester), a native species from the Southern Philippines

R E Madayag; R Jr P Gentallan; K J O Quiñones; M C B Bartolome; J R A Vera Cruz; T H Borromeo; L E Endonela; E B S Timog

doi:10.1080/23802359.2022.2144515

The complete chloroplast genome of 'biasong' (Citrus micrantha Wester), a native species from the Southern Philippines

Mitochondrial DNA B Resour. 2022 Nov 15;7(11):1992-1996. doi: 10.1080/23802359.2022.2144515. eCollection 2022.

Authors

R E Madayag¹, R Jr P Gentallan¹, K J O Quiñones¹, M C B Bartolome¹, J R A Vera Cruz¹, T H Borromeo¹, L E Endonela¹, E B S Timog^{1

2}

Affiliations

¹ Institute of Crop Science, College of Agriculture and Food Science, University of the Philippines Los Baños, College, Laguna, Philippines.
² Department of Forest Biological Sciences, College of Forestry and Natural Resources, University of the Philippines Los Baños, College, Laguna, Philippines.

Abstract

'Biasong' (Citrus micrantha), native to the Southern Philippine Islands, is an important cultivated fruit tree but has no published plastome sequence. We assembled and characterized the C. micrantha chloroplast genome from accession in the germplasm collection of the Institute of Crop Science, University of the Philippines Los Baños. The complete chloroplast (cp) genome sequence is 159,928-bp long with 128 coding genes comprising 83 mRNA genes, 37 tRNA genes, and eight rRNA genes. Out of the mRNA genes, 45 genes code for photosynthesis, 30 genes code for self-replication, and five genes code for other functions. A phylogenetic analysis of the assembled genome, along with 24 Citrus species and three other Rutaceae species, identified Citrus aurantiifolia as its closest relative with available complete cpDNA sequence.

Keywords: Aurantioideae; cpDNA; cultivated fruit tree; plastome assembly; small-flowered Papeda.