The complete chloroplast genome sequence of flowering banana, Musa ornata.
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ABSTRACT:
SUBMITTER: Liu J
PROVIDER: S-EPMC7799988 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:Musa balbisiana is a wild-type species of banana, endemic to Southern China, Eastern South Asia, and Northern Southeast Asia. The M. balbisiana variety 'Pisang Klutuk Wulung' is one of the possible ancestral parents of modern cultivated bananas, but its wild populations are now in decline. In this study, we report the complete chloroplast genome sequence of wild banana, M. balbisiana diploid variety 'Pisang Klutuk Wulung'. The M. balbisiana chloroplast genome is found to be 169,458 bp in length and has a base composition of A (31.44%), G (18.16%), C (18.61%), and T (31.79%). The genome contained two short inverted repeat (IRa and IRb) regions (35,084 bp), which were separated by a large single copy (LSC) region (87,805 bp) and a small single copy (SSC) region (11,485 bp). The genome encodes 113 unique genes, including 79 protein-coding genes, 30 transfer RNA (tRNA) genes, and four ribosomal RNA (rRNA) genes. Further, phylogenetic analysis suggested that M. balbisiana is closely related to the species of M. textilis. This complete chloroplast genome will provide valuable information for the development of DNA markers for future population and conservation studies of M. balbisiana.
| S-EPMC7800968 | biostudies-literature
Project description:BackgroundBanana (genus Musa) is a crop of major economic importance worldwide. It is a monocotyledonous member of the Zingiberales, a sister group of the widely studied Poales. Most cultivated bananas are natural Musa inter-(sub-)specific triploid hybrids. A Musa acuminata reference nuclear genome sequence was recently produced based on sequencing of genomic DNA enriched in nucleus.Methodology/principal findingsThe Musa acuminata chloroplast genome was assembled with chloroplast reads extracted from whole-genome-shotgun sequence data. The Musa chloroplast genome is a circular molecule of 169,972 bp with a quadripartite structure containing two single copy regions, a Large Single Copy region (LSC, 88,338 bp) and a Small Single Copy region (SSC, 10,768 bp) separated by Inverted Repeat regions (IRs, 35,433 bp). Two forms of the chloroplast genome relative to the orientation of SSC versus LSC were found. The Musa chloroplast genome shows an extreme IR expansion at the IR/SSC boundary relative to the most common structures found in angiosperms. This expansion consists of the integration of three additional complete genes (rps15, ndhH and ycf1) and part of the ndhA gene. No such expansion has been observed in monocots so far. Simple Sequence Repeats were identified in the Musa chloroplast genome and a new set of Musa chloroplastic markers was designed.ConclusionThe complete sequence of M. acuminata ssp malaccensis chloroplast we reported here is the first one for the Zingiberales order. As such it provides new insight in the evolution of the chloroplast of monocotyledons. In particular, it reinforces that IR/SSC expansion has occurred independently several times within monocotyledons. The discovery of new polymorphic markers within Musa chloroplast opens new perspectives to better understand the origin of cultivated triploid bananas.
| S-EPMC3696114 | biostudies-literature
Project description:Sanming wild banana (Musa itinerans) is a cold resistant wild banana found in Fujian province of China. In this study, we characterized its complete chloroplast genome using BGISEQ-500 sequencing. The chloroplast genome is 171,815 bp in size, containing a pair of IR regions (35,142 bp), a large single copy region (89,995 bp), and a small single copy region (11,464 bp). The whole chloroplast genome contains 111 unique genes, including 78 protein-coding genes, 29 tRNAs, and 4 rRNAs. Phylogenetic maximum likelihood analysis revealed that Sanming wild banana showed the closest relationship with Musa itinerans that collected from Yunnan Province of China.
| S-EPMC7706688 | biostudies-literature
Project description:Musa becccarii N.W. Simmonds is one of the most important wild banana species native to Borneo. The chromosome number, 2n = 18, is new to the genus Musa. Wild populations of M. beccarii have been reduced enormously due to massive land clearing for oil palm plantations. In this study, we report the complete chloroplast genome of Musa beccarii by next-generation sequencing (NGS). The total length of the complete chloroplast genome was 168,457 bp, and the overall GC content of the whole genome is 36.8%. The cp genome of Musa beccarii contained a pair of inverted repeat regions of 34,819 bp, which were separated by the large single copy of 88,166bp and the small single copy of 11,059 bp. It encoded 114 genes, including 79 protein-coding genes, 31 tRNA genes, and 4 rRNA ribosomal genes. The most genes occur as a single copy, while 21 gene species occur in double copies. The phylogenetic analysis demonstrateds Musa becccarii formed a single branch among genus Musa. This complete chloroplast genome will provide important information for conservation and identification of species of Musa spp.
| S-EPMC7782968 | biostudies-literature
Project description:Musa ornata, wild species of banana is being used as a cut flower, potted plants and for landscape gardening etc., They are also being utilized in banana hybridization programmes for introgressing pest and disease tolerant traits into banana cultivars in addition to the development of inter specific ornamental banana hybrids. Symptoms of banana bract mosaic virus (BBrMV) was observed in the bracts of interspecific M. ornata based hybrid developed using another wild species i.e., Musa rubra Kurz at ICAR-National Research Centre for Banana (NRCB), Tiruchirapalli. Presence of the virus in the bracts, leaves and roots of symptomatic plants was confirmed through triple antibody sandwich enzyme linked immunosorbent assay with BBrMV monoclonal and polyclonal antibodies. BBrMV HC-Pro (1370 bp), CP (900 bp) and VPg (570 bp) genes were amplified from the infected bracts using reverse transcriptase polymerase chain reaction with BBrMV respective gene primers. The amplicons of these three genes were cloned and sequenced. Blastn analysis revealed that HC-Pro, VPg and CP gene sequences has 97.67%, 97.72% and 99.67% similarity with the respective gene sequences of BBrMV infecting banana. Phylogenetic analysis clustered the test isolate with other BBrMV isolates of banana and other hosts based on CP and HC-Pro and VPg gene sequences. The virus is transmitted through Pentalonia nigronervosa and the transmitted plants expressed symptoms under glass house conditions. To the best of our knowledge, this is the first report of BBrMV on ornamental M. ornata hybrid in India and its transmission occurs through Pentalonia nigronervosa.Supplementary informationThe online version contains supplementary material available at 10.1007/s13337-022-00788-6.
| S-EPMC9701267 | biostudies-literature
Project description:The complete chloroplast genome sequence of Kuepferia otophora, a flowering plant occurring in Hengduan Mountains with high altitudes, is determined in this study. The plastome is 139,684?bp in length, with one large single-copy region of 76,787?bp, one small single-copy region of 16,635?bp, and two inverted repeat (IR) regions of 23,131?bp. It contains 128 genes, including 83 protein-coding, 8 ribosomal RNA, and 37 transfer RNA genes. Phylogenetic tree shows that this species is a sister to the clade of genus Gentiana. The first published plastome within Kuepferia provides significant insight for elucidating the phylogenetic relationship of taxa within tribe Gentianeae.
| S-EPMC7687425 | biostudies-literature
Project description:Allium triquetrum (Linnaeus, 1753) is a bulbous flowering plant of the genus Allium (Amaryllidaceae), native to the Mediterranean basin, and is now widespread and invasive in different parts of the world via ornamental horticultural trade. However, to date, the genomic study of A. triquetrum has lagged, which impedes the development of appropriate utilization and management practices for this species. Here, we report the complete chloroplast genome sequence of A. triquetrum. The chloroplast genome size of A. triquetrum was 153,298 bp, consisting of a pair of inverted repeat regions (26,547 bp), separated by a large single-copy (82,875 bp) region and a small single-copy (17,329 bp) region. Genome annotation predicted 133 genes, including 87 protein-coding genes, 38 tRNA genes, and eight rRNA genes. Phylogenetic analysis based on 60 whole chloroplast genome sequences of Allium species suggested that A. triquetrum and A. moly are sister to each other along with the clade of A. fasciculatum, A. hookeri, and A. macranthum.
| S-EPMC9639542 | biostudies-literature
Project description:Musa acuminata var. chinensis is one of the most important wild banana species native to China which has huge potential breeding value by its cold tolerance and disease resistance. In this study, we first reported the complete chloroplast genome of M. acuminata var. chinensis and explore its phylogenetic position using a maximum likelihood phylogenetic tree. The chloroplast genome of M. acuminata var. chinensis is 170,402 bp in length and the overall GC content of the whole genome is 36.8%. It consisting of a pair of inverted repeat (IR, 35,320 bp) regions, a large single-copy (LSC, 88,870 bp) and a small single-copy (SSC, 10,900 bp). The chloroplast genome contained 112 genes, including 79 protein-coding genes, 29 tRNA genes, and 4 rRNA ribosomal genes. The most genes occur as a single copy, while 23 gene species occur in double copies. Phylogenetic analysis of 7 selected chloroplast genomes revealed that M. acuminata var. chinensis was closely related to M. acuminata ssp. malaccensis. The complete chloroplast genome of M. acuminata var. chinensis will greatly enhance precious gene resources for banana breeding programs in the future.
| S-EPMC7782695 | biostudies-literature
Project description:Banana streak virus (BSV) belongs to the members of the genus Badnavirus, family Caulimoviridae. At present, BSV contains nine species in the International Committee on Taxonomy of Viruses (ICTV) classification report (2018b release). Previous study indicated that the viral particles of Banana streak virus Acuminata Yunnan (BSV-Acum) were purified from banana (Cavendish Musa AAA group) leaves in Yunnan Province, China, and its complete genome was obtained. To further determine whether this sample infecting with Banana streak GF virus (BSGFV), the polymerase chain reaction (PCR) cloning and complete genome analysis of the Banana streak GF virus Yunnan isolate (BSGFV-YN) isolate were carried out in this study. The result showed that BSGFV-YN infecting Cavendish Musa AAA group was co-infecting this sample. Its genome contains a total of 7,325 bp in length with 42% GC content. This complete genome sequence was deposited in GenBank under accession number MN296502. Sequence analysis showed that the complete genome of BSGFV-YN was 98.14% sequence similarity to BSGFV Goldfinger, while it was 49.10-57.09% to other BSV species. Two phylogenetic trees based on the complete genome and ORFIII polyprotein indicated that BSGFV-YN and other BSV species clustered into a group, while it was the highest homology with BSGFV Goldfinger. Although BSGFV-YN and BSGFV Goldfinger were highly homologous, their cultivating bananas are different. The former cultivating banana was from Cavendish Musa AAA group, while the latter cultivating banana was from Goldfinger Musa AAAB group. Compared with BSGFV Goldfinger, the genome of BSGFV-YN has an extra multiple repetitive sequences in the intergenetic region between ORFIII and ORFI, suggesting that this region might be related to host selection. In summary, a BSGFV-YN distant from BSV-Acum was identified from the same sample, and its complete genome sequence was determined and analyzed. The study extends the polymorphism of BSVs in China and provides scientific clue for the evolutionary relationship with host selection of badnaviruses.
| S-EPMC6991131 | biostudies-literature
Project description:Banana is an important day neutral food crop with a long flowering/fruiting cycle that is affected by hot summers or cold winters in different places. Manipulating its life cycle requires an understanding of its flowering time machinery to bypass these stresses. Twelve FLOWERING LOCUS T (FT) and two TWIN SISTER OF FT (TSF) members were isolated from banana and their organization and expression pattern studied during development in two varieties that differ in flowering time namely Grand Nain (AAA genotype) and Hill banana (AAB genotype). The expression of at least 3 genes namely MaFT1, MaFT2 and MaFT5 (and to some extent MaFT7) increases just prior to initiation of flowering. These four genes and five others (MaFT3, MaFT4, MaFT8, MaFT12 and MaTSF1 could suppress the delayed flowering defect in the Arabidopsis ft-10 mutant and induce early flowering upon over-expression in the Col-0 ecotype. Most genes are diurnally regulated and differentially expressed during development and in various vegetative and reproductive tissues suggesting roles besides flowering. Subtle amino acid changes in these FT/TSF-like proteins provide interesting insights into the structure/function relationships of banana FTs vis-à-vis Arabidopsis. The studies provide a means for manipulation of flowering in banana for better management of resources and to reduce losses through abiotic stresses.
| S-EPMC5517511 | biostudies-literature