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Non-reciprocal Interspecies Hybridization Barriers in the Capsella Genus are Established in the Endosperm

ABSTRACT: Non-reciprocal Interspecies Hybridization Barriers in the Capsella Genus are Established in the Endosperm

OTHER RELATED OMICS DATASETS IN: GSE67359

PROVIDER: PRJNA279584 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR1944440_1.fastq.gz	Fastqsanger.gz
	SRR1944440_2.fastq.gz	Fastqsanger.gz
	SRR1944441_1.fastq.gz	Fastqsanger.gz
	SRR1944441_2.fastq.gz	Fastqsanger.gz
	SRR1944442_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

Non-reciprocal Interspecies Hybridization Barriers in the Capsella Genus are Established in the Endosperm

Project description:We described in this work the reproductive barrier between Capsella rubella and Capsella grandiflora leading to hybrid seed inviability. The transcriptome revealed a similar response to the one observed in interploidy hybrid seeds.

2015-03-28 | GSE67359 | GEO

Non-reciprocal Interspecies Hybridization Barriers in the Capsella Genus Are Established in the Endosperm.

Project description:The transition to selfing in Capsella rubella accompanies its recent divergence from the ancestral outcrossing C. grandiflora species about 100,000 years ago. Whether the change in mating system was accompanied by the evolution of additional reproductive barriers that enforced species divergence remained unknown. Here, we show that C. rubella and C. grandiflora are reproductively separated by an endosperm-based, non-reciprocal postzygotic hybridization barrier. While hybridizations of C. rubella maternal plants with C. grandiflora pollen donors resulted in complete seed abortion caused by endosperm cellularization failure, the reciprocal hybridization resulted in the formation of small seeds with precociously cellularized endosperm. Strikingly, the transcriptomic response of both hybridizations mimicked respectively the response of paternal and maternal excess hybridizations in Arabidopsis thaliana, suggesting unbalanced genome strength causes hybridization failure in both species. These results provide strong support for the theory that crosses between plants of different mating systems will be unbalanced, with the outcrosser behaving like a plant of increased ploidy, evoking a response that resembles an interploidy-type seed failure. Seed incompatilibity of C. rubella pollinated by C. grandiflora followed the Bateson-Dobzhansky-Muller model, involving negative genetic interaction of multiple paternal C. grandiflora loci with at least one maternal C. rubella locus. Given that both species only recently diverged, our data suggest that a fast evolving mechanism underlies the post-zygotic hybridization barrier(s) separating both species.

| S-EPMC4472357 | biostudies-literature

Imprinted genes in Three Capsella Species

Project description:Genome-wide identification of imprinted genes in Capsella grandiflora and Capsella orientalis

2019-03-26 | GSE103209 | GEO

Capsella

Project description:Capsella overview

| PRJNA195512 | ENA

Polymerase IV Plays a Crucial Role in Pollen Development in Capsella

Project description:In Arabidopsis thaliana, DNA-dependent RNA polymerase IV (Pol IV) is required for the formation of transposable element (TE)-derived small RNA (sRNA) transcripts. These transcripts are processed by DICER-LIKE3 into 24-nt small interfering RNAs (siRNAs) that guide RNA-directed DNA methylation. In the pollen grain, Pol IV is also required for the accumulation of 21/22-nt epigenetically activated siRNAs (easiRNAs), which likely silence TEs via post-transcriptional mechanisms. Despite this proposed role of Pol IV, its loss of function in Arabidopsis does not cause a discernable pollen defect. Here, we show that the knockout of NRPD1, encoding the largest subunit of Pol IV in the Brassicaceae species Capsella rubella, caused post-meiotic arrest of pollen development at the microspore stage. As in Arabidopsis, all TE-derived siRNAs were 2 depleted in Capsella nrpd1 microspores. In the wild-type background, the same TEs produced 21/22-nt and 24-nt siRNAs; these processes required Pol IV activity. Arrest of Capsella nrpd1 microspores was accompanied by the deregulation of genes targeted by Pol IV-dependent siRNAs. TEs were much closer to genes in Capsella rubella compared to Arabidopsis thaliana, perhaps explaining the essential role of Pol IV in pollen development in Capsella. Our discovery that Pol IV is functionally required in Capsella microspores emphasizes the relevance of investigating different plant models.

2020-01-23 | GSE136847 | GEO

Capsella

Project description:Capsella rubella 1504 and Capsella grandiflora 926. Genome sequencing

| PRJNA255453 | ENA

Paternally expressed imprinted genes establish postzygotic hybridization barriers in Arabidopsis thaliana

Project description:Paternally expressed imprinted genes establish postzygotic hybridization barriers in Arabidopsis thaliana

2015-09-28 | GSE62401 | GEO

Interspecies hybridization versus intra-species hybridization for Leishmania promastigote RNA.

Project description:Interspecies hybridization versus intra-species hybridization for Leishmania promastigote RNA.

| PRJNA104669 | ENA

Interspecies hybridization between Arabidopsis thaliana and Arabidopsis arenosa

Project description:Hybrid matings between A. thaliana and A. arenosa result in post zygotic seed lethality resulting in hybridization barrier between the two species. This barrier can be overcome to a large degree by increasing the genome dosage of the maternal genome (i.e. A. thaliana) in a cross between the two species. In this experiment we assayed the transcriptome of an incompatible cross (2x At x 2x Aa) with high seed lethality and a compatible cross (4x At x 2x Aa) using silique tissue at 5 days after pollination. We used microarrays to identify dosage responsive gene in interspecies hybridization Keywords: differential expression

2009-10-01 | GSE14090 | GEO

Capsella grandiflora x Capsella rubella

Project description:Capsella genetic map

| PRJNA176606 | ENA