Dataset Information

The MetaInvert soil invertebrate genome resource provides insights into below-ground biodiversity and evolution.

ABSTRACT: Soil invertebrates are among the least understood metazoans on Earth. Thus far, the lack of taxonomically broad and dense genomic resources has made it hard to thoroughly investigate their evolution and ecology. With MetaInvert we provide draft genome assemblies for 232 soil invertebrate species, representing 14 common groups and 94 families. We show that this data substantially extends the taxonomic scope of DNA- or RNA-based taxonomic identification. Moreover, we confirm that theories of genome evolution cannot be generalised across evolutionarily distinct invertebrate groups. The soil invertebrate genomes presented here will support the management of soil biodiversity through molecular monitoring of community composition and function, and the discovery of evolutionary adaptations to the challenges of soil conditions.

SUBMITTER: Collins G

PROVIDER: S-EPMC10709333 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature

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The MetaInvert soil invertebrate genome resource provides insights into below-ground biodiversity and evolution.

Collins Gemma G Schneider Clément C Boštjančić Ljudevit Luka LL Burkhardt Ulrich U Christian Axel A Decker Peter P Ebersberger Ingo I Hohberg Karin K Lecompte Odile O Merges Dominik D Muelbaier Hannah H Romahn Juliane J Römbke Jörg J Rutz Christelle C Schmelz Rüdiger R Schmidt Alexandra A Theissinger Kathrin K Veres Robert R Lehmitz Ricarda R Pfenninger Markus M Bálint Miklós M

Communications biology 20231208 1

Soil invertebrates are among the least understood metazoans on Earth. Thus far, the lack of taxonomically broad and dense genomic resources has made it hard to thoroughly investigate their evolution and ecology. With MetaInvert we provide draft genome assemblies for 232 soil invertebrate species, representing 14 common groups and 94 families. We show that this data substantially extends the taxonomic scope of DNA- or RNA-based taxonomic identification. Moreover, we confirm that theories of genom ...[more]

PMID: 38066075

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Project description:The section Oleifera (Theaceae) has attracted attention for the high levels of unsaturated fatty acids found in its seeds. Here, we report the chromosome-scale genome of the sect. Oleifera using diploid wild Camellia lanceoleosa with a final size of 3.00 Gb and an N50 scaffold size of 186.43 Mb. Repetitive sequences accounted for 80.63% and were distributed unevenly across the genome. Camellia lanceoleosa underwent a whole-genome duplication event approximately 65 million years ago (65 Mya), prior to the divergence of C. lanceoleosa and Camellia sinensis (approx. 6-7 Mya). Syntenic comparisons of these two species elucidated the genomic rearrangement, appearing to be driven in part by the activity of transposable elements. The expanded and positively selected genes in C. lanceoleosa were significantly enriched in oil biosynthesis, and the expansion of homomeric acetyl-coenzyme A carboxylase (ACCase) genes and the seed-biased expression of genes encoding heteromeric ACCase, diacylglycerol acyltransferase, glyceraldehyde-3-phosphate dehydrogenase and stearoyl-ACP desaturase could be of primary importance for the high oil and oleic acid content found in C. lanceoleosa. Theanine and catechins were present in the leaves of C. lanceoleosa. However, caffeine can not be dectected in the leaves but was abundant in the seeds and roots. The functional and transcriptional divergence of genes encoding SAM-dependent N-methyltransferases may be associated with caffeine accumulation and distribution. Gene expression profiles, structural composition and chromosomal location suggest that the late-acting self-incompatibility of C. lanceoleosa is likely to have favoured a novel mechanism co-occurring with gametophytic self-incompatibility. This study provides valuable resources for quantitative and qualitative improvements and genome assembly of polyploid plants in sect. Oleifera.

Dataset Information

The MetaInvert soil invertebrate genome resource provides insights into below-ground biodiversity and evolution.

Publications

The MetaInvert soil invertebrate genome resource provides insights into below-ground biodiversity and evolution.

Similar Datasets

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