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Soler, SalvadorAuthorProhens, JaimeAuthor

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April 14, 2025
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New QTLs involved in the control of stigma position in tomato

Publicated to: BMC PLANT BIOLOGY. 25 (1): 423- - 2025-04-03 25(1), DOI: 10.1186/s12870-025-06449-2

Authors:

Riccini, A; Olivieri, F; Farinon, B; Bitton, F; Diouf, I; Carretero, Y; Soler, S; Figàs, MD; Prohens, J; Monforte, AJ; Granell, A; Causse, M; Mazzucato, A
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Affiliations

Consorzio Interuniv Biotecnol, Trieste, Italy - Author
INRAE, UR1052 GAFL, Paris, France - Author
Univ Politecn Valencia, CSIC, Inst Biol Mol & Celular Plantas IBMCP, Valencia, Spain - Author
Univ Politecn Valencia, Valencia, Spain - Author
Univ Tuscia, Viterbo, Italy - Author
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Abstract

BackgroundTomato mating systems were strongly affected by domestication events. Mutations disrupting self-incompatibility paralleled by changes retracting the stigma position (SP) within the staminal cone conferred strict autogamy and self-fertility to the cultivated forms. Although major genes affecting these changes have been identified, SP control in domesticated forms that retain a constitutive or heat-inducible noninserted SP needs elucidation. To widen the possibility of identifying SP genetic determinants, we analyzed the trait in four populations (two germplasm collections, a multiparental recombinant inbred and a biparental progeny) under different environmental conditions (normal and heat stressed).ResultsOverall, 37 markers significantly associated with the trait were identified. Several colocalizations were found, both among regions first reported in this work and among them and previously reported positions. This finding supported the reliability of the analysis. Three such regions, in the long arms of chromosomes 1, 8 and 11, were validated in an independent segregating population, and candidate genes in confidence intervals were identified among transcription factors and hormone-, stress- and cell wall-related genes.ConclusionOverall, this work supported the hypothesis that the SP phenotype is controlled by different key genes in tomato, paving the way for the identification of novel players and novel mechanisms involved in the regulation of herkogamy.
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Keywords

ArabidopsisAssociationAutogamyDiversityExpressionFruit-setGenomeGwasPopulationPrograQtlSolanum-lycopersiconStigma exsertionStigma insertionTomatTraits

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal BMC PLANT BIOLOGY due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 33/273, thus managing to position itself as a Q1 (Primer Cuartil), in the category Plant Sciences.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-03:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 11 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: France; Italy.

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    Awards linked to the item

    We thank the Traditom Consortium and the C.M. Rick TGRC, University of California, Davis, USA, for seed stock supply; Fabrizio de Angelis and Federico Pascarella for their technical assistance in QTL validation; and Sotirios Fragkostefanakis for helpful discussion.
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