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This research was supported by Projects RTI2018-101275-B-I00 and PID2021-128825OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe to B.SS, and PID2019-104099RR-I00 to C.D. We acknowledge financial support from the MCIN/AEI/10.13039/501100011033 through the Severo Ochoa Programme for Centres of Excellence in R & D (SEV-2015-0533 and CEX2019-000902-S) and the CERCA Programe/Generalitat de Catalunya. We also thank support from the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI).G.E. was the recipient of Grant PEJ2018-002245-P funded by MCIN/AEI/10.13039/501100011033 and by ESF Investing in your future.

Analysis of institutional authors

Catala-Forner, MAuthor

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Article

Development and Genome-Wide Analysis of a Blast-Resistant japonica Rice Variety

Publicated to:Plants-Basel. 12 (20): 3536- - 2023-10-11 12(20), DOI: 10.3390/plants12203536

Authors: Escolà, G; González-Miguel, VM; Campo, S; Catala-Forner, M; Domingo, C; Marqués, L; San Segundo, B

Affiliations

Cooperat Productores Semillas Arroz SCL COPSEMAR, Avda Mar 1, Sueca 46410, Spain - Author
CSIC, Barcelona 08193, Spain - Author
Ctr Genom, Ctra Moncada Naquera Km 10-7, Moncada 46113, Spain - Author
Cultius Extensius Sostenibles. Producció Vegetal - Author
Fundacio Miquel Agusti, Campus Baix Llobregat,Edif D4,C Esteve Terrades 8, Castelldefels 08860, Spain - Author
Inst Agrifood Res & Technol IRTA, Field Crops, Ctra Balada Km 1, Tarragona 43870, Spain - Author
Inst Valenciano Invest Agr IVIA, Dept Arroz, Ctra Moncada Naquera Km 10-7, Moncada 46113, Spain - Author
Univ Autonoma Barcelona UAB, Ctr Res Agr Genom CRAG, CSIC, IRTA,UAB,UB, C Vall Moronta,CRAG Bldg, Barcelona 08193, Spain - Author
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Abstract

Rice is one of the most important crops in the world, and its production is severely affected by the rice blast disease caused by the fungus Magnaporthe oryzae. Several major blast resistance genes and QTLs associated with blast resistance have been described and mostly identified in indica rice varieties. In this work, we report the obtention of a blast-resistant rice breeding line derived from crosses between the resistant indica variety CT13432 and the japonica elite cultivar JSendra (highly susceptible to blast). The breeding line, named COPSEMAR9, was found to exhibit resistance to leaf blast and panicle blast, as demonstrated by disease assays under controlled and field conditions. Furthermore, a high-quality genome sequence of the blast-resistant breeding line was obtained using a strategy that combines short-read sequencing (Illumina sequencing) and long-read sequencing (Pacbio sequencing). The use of a whole-genome approach allowed the fine mapping of DNA regions of indica and japonica origin present in the COPSEMAR9 genome and the identification of parental gene regions potentially contributing to blast resistance in the breeding line. Rice blast resistance genes (including Pi33 derived from the resistant parent) and defense-related genes in the genome of COPSEMAR9 were identified. Whole-genome analyses also revealed the presence of microRNAs (miRNAs) with a known function in the rice response to M. oryzae infection in COPSEMAR9, which might also contribute to its phenotype of blast resistance. From this study, the genomic information and analysis methods provide valuable knowledge that will be useful in breeding programs for blast resistance in japonica rice cultivars.

Keywords

breedingdefensegenome mappingjaponicamagnaporthe oryzaemicrorna (mirna)oryza sativaBreedingBroad-spectrum resistanceDefenseDisease resistanceGenesGenome mappingIdentificationImmunityJaponicaMagnaporthe oryzaeMagnaporthe-griseaMicrorna (mirna)Nucleotide-binding siteOryza sativaResistance

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Plants-Basel 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, 2023, it was in position 46/265, thus managing to position itself as a Q1 (Primer Cuartil), in the category Plant Sciences.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 2.26, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-15, the following number of citations:

  • WoS: 2
  • Scopus: 5
  • OpenCitations: 2

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 2025-06-15:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 5.
  • 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: 5 (PlumX).

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

  • The Total Score from Altmetric: 1.25.
  • The number of mentions on the social network X (formerly Twitter): 2 (Altmetric).

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.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: http://hdl.handle.net/20.500.12327/2460

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Escolà, G) and Last Author (San Segundo, B).

the author responsible for correspondence tasks has been San Segundo, B.