Comparative transcriptomics reveals commonalities and differences in the genetic underpinnings of a floral dimorphism

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Dec. 1, 2022

Distyly, a floral dimorphism associated with heteromorphic self-incompatibility and controlled by the S-locus supergene, evolved independently multiple times. Comparative analyses of first transcriptome atlas for main distyly model, Primula veris, other distylous species produced following findings. A set 53 constitutively expressed genes in P. veris did not include any housekeeping commonly used to normalize gene expression qPCR experiments. The CYPT acquired its role controlling style elongation via change profile. Comparison differentially between morphs revealed that brassinosteroids auxin are hormones Fagopyrum esculentum, respectively. Furthermore, shared biochemical pathways might underlie distantly related F. esculentum Turnera subulata, suggesting degree correspondence evolutionary convergence at phenotypic molecular levels. Finally, we provide evidence supporting previously proposed hypothesis supergenes recruitment phytochrome-interacting factor (PIF) signaling network. To conclude, this is study discovered homologous involved control taxa.

Language: Английский

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A supergene in seaweed flies modulates male traits and female perception

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2008)

Published: Oct. 11, 2023

Supergenes, tightly linked sets of alleles, offer some the most spectacular examples polymorphism persisting under long-term balancing selection. However, we still do not understand their evolution and persistence, especially in face accumulation deleterious elements. Here, show that an overdominant supergene seaweed flies, Coelopa frigida, modulates male traits, potentially facilitating disassortative mating promoting intraspecific polymorphism. Across two continents, Cf-Inv(1) strongly affected composition cuticular hydrocarbons (CHCs) but only weakly CHC females. Using gas chromatography-electroantennographic detection, females can sense CHCs there may be differential perception between genotypes. Combining our phenotypic results with RNA-seq data, candidate genes for biosynthesis primarily expression males Conversely, odorant detection were differentially expressed both sexes showed high levels divergence haplotypes. We suggest reduced recombination haplotypes have led to rapid mate preferences as well increasing linkage loci. Together this probably helped maintain despite effects homozygotes.

Language: Английский

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Annotation of the Turnera subulata (Passifloraceae) Draft Genome Reveals the S-Locus Evolved after the Divergence of Turneroideae from Passifloroideae in a Stepwise Manner

Plants, Journal Year: 2023, Volume and Issue: 12(2), P. 286 - 286

Published: Jan. 7, 2023

A majority of Turnera species (Passifloraceae) exhibit distyly, a reproductive system involving both self-incompatibility and reciprocal herkogamy. This differs from in Passiflora species. The genetic basis distyly is supergene, restricted to the S-morph, containing three S-genes. How supergenes evolved Turnera, other Angiosperm families exhibiting remain largely unknown. Unraveling evolutionary origins requires generation genomic resources extensive phylogenetic analyses. Here, we present annotated draft genome S-morph distylous subulata. Our annotation allowed for analyses S-genes’ across 56 plant ranging non-seed plants eudicots. In addition analysis, identified closest paralogs two Passiflora. suggest that S-locus after divergence Turnera. Finally, provide insights into neofunctionalization S-genes, compared expression patterns S-genes with close Arabidopsis Populus trichocarpa. T. subulata will useful resource future comparative work. Additionally, this work has provided convergent nature origin supergenes.

Language: Английский

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Complementary roles of hummingbirds and bees: Pollen pickup, pollen deposition, and fruit production in the distylous Palicourea rigida

American Journal of Botany, Journal Year: 2023, Volume and Issue: 110(6)

Published: June 1, 2023

Abstract Premise Distyly is a condition in which individual plants population express two floral morphs, L‐ and S‐morph, characterized by reciprocal placements of anthers stigmas between morphs. The function distyly requires that pollinators collect pollen from S‐morphs on different parts along their bodies to then deposit it the opposite morph, known as legitimate pollination. However, pollinator groups might differ ability transfer legitimately. Methods We investigated patterns pickup body functional (hummingbirds bees) using preserved specimens analyze role reproductive success Palicourea rigida . measured deposition pollinators, stigmas, fruit production after single visit. Results Pollen S‐flowers appeared segregated hummingbird bee used study. S‐pollen was deposited primarily proximal regions (near head), L‐pollen placed distal (tip proboscis bill). Hummingbirds were more efficient at pollination than bees, particularly S‐stigmas. formation visits both similar. Conclusions morphology distylous flowers allows placement L‐and animal used, facilitating promotion transfer, an observation consistent groups. Also, results show full set one

Language: Английский

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Heterostyly

Current Biology, Journal Year: 2024, Volume and Issue: 34(5), P. R181 - R183

Published: March 1, 2024

Language: Английский

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