基于RNA-Seq技術(shù)分析在金屬礦上部生長的芒萁的差異表達基因
[Abstract]:Osmunda dichotoma (Dicranopteris pedata (Houtt.) Nakaike) grown in the upper part of Dachang tin polymetallic ore deposit (heavy metal stress area) and the outer area (control area) not affected by mineralization or pollution were used as experimental materials. The unigenes was assembled by NCBI official non-redundant protein sequence database (Nr), NCBI official nonredundant nucleotide sequence database (Nt), KEGG homologous database (KO), Swiss-Prot database (Swiss-Prot) and protein family database (Pfam), gene functional classification system database. (GO) and Eukaryotic homologous sequence database (KOG) were annotated. Expression of unigenes. in leaves of Osmunda japonicus under heavy metal stress and control The results showed that 19.56 Gb clean data, were obtained by sequencing. The leaves of Osmunda japonica were 10.14 Gb clean data. and 9.42 Gb clean data. in heavy metal stress region and control area, respectively. Of the 250582 unigenes assembled, 120,097 unigenes were annotated, accounting for 47.93% of the total unigenes. There were 208,620 unigenes upregulation and down-regulation in the leaves of Osmunda japonicus under heavy metal stress, and 120 of them up-regulated the differential expression of unigenes as a metabolic process. 57.69and 285 down-regulated differentially expressed unigenes were noted as catalytic activity, and 45.97% of all down-regulated differentially expressed unigenes. 15 unigenes were related to heavy metal transport and tolerance in the leaves of Osmunda japonicus under heavy metal stress. The relative expression of c44988_g1 and c84121_g1 were significantly higher than those of the control. The results show that the genes that respond to natural metal mineralization or mine heavy metal pollution can be used for biogeochemical prospecting and soil heavy metal contamination detection.
【作者單位】: 廣西大學(xué)農(nóng)學(xué)院;廣東工業(yè)大學(xué)計算機學(xué)院;桂林理工大學(xué)廣西隱伏金屬礦產(chǎn)勘查重點實驗室;桂林理工大學(xué)地球科學(xué)學(xué)院;
【基金】:國家自然科學(xué)基金資助項目(41363003;40972220)
【分類號】:Q943.2
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