Dataset Information

The complete chloroplast genome of a purple Ethiopian rape (Brassica carinata: Brassicaceae) from Guizhou Province, China and its phylogenetic analysis.

ABSTRACT: Brassica carinata A. Braun (Ethiopian rape), which was derived from the interspecific hybridization between B. nigra and B. oleracea, is used as both an oilseed and a leafy vegetable. The complete chloroplast (cp) genome of a purple B. carinata was obtained. This cp genome has a typical quadripartite structure and is 153,641 bp in length. The GC content of the cp genome is 36.39%. A total of 113 genes were predicted on this cp genome, including 79 protein coding, 4 rRNA, and 30 tRNA genes. Among these genes, 18 genes were duplicated (7 tRNAs, 4 rRNAs, and 7 protein coding genes). Sixty-eight SSR loci, including 11 compound SSRs, were identified in this cp genome by MISA. The phylogenetic tree analysis fully resolved B. carinata in a clade with B. nigra. This study provides important information for future evolution, genetic and molecular biology studies of B. carinata.

SUBMITTER: Zhu B

PROVIDER: S-EPMC8183523 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:Intercropping is widespread in small-holder farming systems in tropical regions and is also practiced in the cultivation of indigenous vegetables, to alleviate the multiple burdens of malnutrition. Due to interspecific competition and/or complementation between intercrops, intercropping may lead to changes in plants accumulation of minerals and secondary metabolites and hence, alter nutritional quality for consumers. Intercropping aims to intensify land productivity, while ensuring that nutritional quality is not compromised. This study aimed to investigate changes in minerals and secondary plant metabolites in intercropped Brassica carinata and Solanum scabrum, two important African indigenous vegetables, and evaluated the suitability of this combination for dryer areas. B. carinata and S. scabrum were grown for 6 weeks under controlled conditions in a greenhouse trial. Large rootboxes (8000 cm3 volume) were specifically designed for this experiment. Each rootbox was planted with two plants, either of the same plant species (mono) or one of each plant species (mixed). A quartz sand/soil substrate was used and fertilized adequately for optimal plant growth. During the last 4 weeks of the experiment, the plants were either supplied with optimal (65% WHC) or low (30% WHC) irrigation, to test the effect of a late-season drought. Intercropping increased total glucosinolate content in B. carinata, while maintaining biomass production and the contents of other health related minerals in both B. carinata and S. scabrum. Moreover, low irrigation led to an increase in carotene accumulation in both mono and intercropped S. scabrum, but not in B. carinata, while the majority of kaempferol glycosides and hydroxycinnamic acid derivatives of both species were decreased by intercropping and drought treatment. This study indicates that some health-related phytochemicals can be modified by intercropping or late-season drought, but field validation of these results is necessary before definite recommendation can be made to stakeholders.

Dataset Information

The complete chloroplast genome of a purple Ethiopian rape (Brassica carinata: Brassicaceae) from Guizhou Province, China and its phylogenetic analysis.

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