Dataset Information

De novo transcriptome assembly for the lung of the ornamented pygmy frog (Microhyla fissipes).

ABSTRACT: Microhyla fissipes, belonging to Neobatrachia, is a new model organism to study developmental biology, adaptive mechanisms from aquatic to terrestrial life, environmental toxicology, and human disease. M. fissipes use of lungs soon after hatching makes it extremely valuable for the study of lung function and development mechanisms. However, our knowledge of genes and pathways associated with lung development in M. fissipes is very limited. In this study, we conducted de novo transcriptome assembly for the lung of M. fissipes using the Illumina HiSeq4000 platform. We obtained approximately 9.0 GB clean data from the lung of the stage 28 tadpole with lung inflation (NCBI accession numbers: SRP107055). De novo transcriptome assembly identified 209,358 transcripts and 93,813 unigenes. In addition, BLASTX against NR, NT, KO, SwissProt, PFAM, GO and KOG databases were used to annotate all the 93,813 unigenes. This study provides the transcriptome and functional annotation of genes in M. fissipes lung development, which will be useful for comparative transcriptome analyses and promote research into mechanism of lung development in anuran.

SUBMITTER: Liu L

PROVIDER: S-EPMC5503836 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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De novo transcriptome assembly for the lung of the ornamented pygmy frog (Microhyla fissipes).

Liu Lusha L Wang Shouhong S Zhao Lanying L Jiang Jianping J

Genomics data 20170704

Microhyla fissipes, belonging to Neobatrachia, is a new model organism to study developmental biology, adaptive mechanisms from aquatic to terrestrial life, environmental toxicology, and human disease. M. fissipes use of lungs soon after hatching makes it extremely valuable for the study of lung function and development mechanisms. However, our knowledge of genes and pathways associated with lung development in M. fissipes is very limited. In this study, we conducted de n ...[more]

PMID: 28725556

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Project description:Thyroid hormone (T3) is essential for vertebrate development, especially during the so-called postembryonic development, a period around birth in mammals when plasma T3 level peaks and many organs mature into their adult form. Compared to embryogenesis, postembryonic development is poorly studied in mammals largely because of the difficulty to manipulate the uterus-enclosed embryos and neonates. Amphibian metamorphosis is independent of maternal influence and can be easily manipulated for molecular and genetic studies, making it a valuable model to study postembryonic development in vertebrates. Studies on amphibian metamorphosis have been largely focused on the two highly related species Xenopus laevis and Xenopus tropicalis. However, adult X. laevis and X. tropicalis animals remain aquatic. This makes important to study metamorphosis in a species in which postmetamorphic frogs live on land. In this regard, the anuran Microhyla fissipes represents an alternative model for developmental and genetic studies. Here we have made use of the advances in sequencing technologies to investigate the gene expression profiles underlying the tail resorption program during metamorphosis in M. fissipes. We first used single molecule real-time sequencing to obtain 67, 939 expressed transcripts in M. fissipes. We next identified 4,555 differentially expressed transcripts during tail resorption by using Illumina sequencing on RNA samples from tails at different metamorphic stages. Bioinformatics analyses revealed that 11 up-regulated KEGG (Kyoto Encyclopedia of Genes and Genomes) pathways and 88 Gene Ontology (GO) terms as well as 21 down-regulated KEGG pathways and 499 GO terms were associated with tail resorption. Our findings suggest that tail resorption in M. fissipes and X. laevis shares many programs. Future investigations on function and regulation of these genes and pathways should help to reveal the mechanisms governing amphibian tail resorption and adaptive evolution from aquatic to terrestrial life. Furthermore, analysis of the M. fissipes model, especially, on the changes in other organs associated with the transition from aquatic to terrestrial living, should help to reveal important mechanistic insights governing mammalian postembryonic developments.

Dataset Information

De novo transcriptome assembly for the lung of the ornamented pygmy frog (Microhyla fissipes).

Publications

<i>De novo</i> transcriptome assembly for the lung of the ornamented pygmy frog (<i>Microhyla fissipes</i>).

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