Characterization of the complete chloroplast genome of Juniperus recurva (Cupressaceae), the Dropping Juniper from the Himalaya

Abstract

The complete chloroplast genome of the Drooping Juniper, Juniperus recurva, was characterized. The cp genome was 127,602 bp in length, which contained 119 genes, including 82 protein-coding genes, 33 tRNA, and four ribosomal RNA genes. Eight genes (atpF, ndhA, ndhB, rpoC1, petD, petB, rpl16, and rpl2) had a single intron, whereas two genes (rps12 and ycf3) contained two introns. The GC content of this circle genome is 35.0%. Phylogenomic analysis based on 78 common protein sequences strongly supported the close relationship between J. recurva and J. tibetica.

Characterization of the Complete Chloroplast Genome Sequence of Juniperus polycarpos K. Koch (Cupressaceae), from Ziarat, Pakistan

“…The size of the complete cp genome of J. polycarpos (127,825bp) was consistent with cp genomes from the other sequenced Juniperus species (i.e., ranging from 127,126 bp in J. cedrus to 127,792 bp in J. squamata (Table 3). The absence of inverted repeat (IR) sequence in conifers largely accounts for relatively small cp genome size, as observed for J. polycarpos in the present report and for other published works on cp genomes of Cupressaceae species (35)(36)(37)(38)(39) . Conifers like Douglas-fir and radiata pine also lack the large (20-25 kb) inverted repeat that characterizes most land plants (40) .…”

The complete chloroplast genome of Juniperus squamata (Cupressaceae), a shrubby conifer from Asian Mountains

“…The overall GC content of J. squamata cpDNA is 35.1%. This genome does not contain inverted repeat (IR) sequence, which is consistent with the results of the previously published Cupressaceae species (Guo et al 2016;Li et al 2016;Tso et al 2018;Miao et al 2019;Song et al 2019).…”

Comparative analysis of chloroplast genomes of seven Juniperus species from Kazakhstan

“…An assessment of the nucleotide sequences revealed that 3.6% were polymorphic, confirming the conserved nature of the pt genomes at the genus level [ 70 , 71 ]. The size of the pt genomes of these seven species was within the expected range (127–128 Kb) of other sequenced pt genomes of Juniperus members [ 46 , 47 , 49 ]. The GC content ranged from 34.36% to 34.98% ( Table 2 ); the same value has been observed in other Juniperus pt genomes, including those of J .…”

“…Recently, promising steps have been accomplished in the characterization of the complete pt genomes of Juniperus species from China [44][45][46][47][48][49][50], Pakistan [51], and Kazakhstan [52,53]. A complete pt genome comparison of four Juniperus species from China has been published [54].…”