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Plants
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Genetic Diversity and Germplasm Innovation in Woody Oil Crops
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Genetic Diversity and Germplasm Innovation in Woody Oil Crops

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 30 January 2026 | Viewed by 445

Special Issue Editor

Dr. Tao Chen

E-Mail Website
Guest Editor
College of Life Science, Sichuan Agricultural University, Ya’an 625014, China
Interests: germplasm; phenotype; genetic diversity; molecular markers; population structure
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Protecting and enhancing the genetic diversity of woody oil crops, such as Olive, Walnut, and Camellia oleifera, is vital for addressing increasingly severe climate change and biological stresses and for achieving sustainable global production. The aim of this Special Issue is to explore the urgent need to improve the adaptability and productivity of woody oil crops by innovatively improving their genetic resources. We cordially invite the submission of original research papers and review articles focusing on the characteristics, protection, and utilization of the genetic resources of key woody oil species. Topics of interest include, but are not limited to, evaluating genetic diversity patterns using molecular markers and genomics, identifying new alleles/characteristics (especially those that tolerate abiotic and biological stresses), improving oil quality and yield, developing innovative breeding strategies (such as genome-assisted breeding), and assessing the impact of climate change on genetic resources. We welcome submissions that cover topics such as molecular genetics, physiology, breeding, and conservation with the aim of promoting the use of genetic resources in climate-resilient woody oil crop systems.

Dr. Tao Chen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • woody oil crops
  • genetic diversity
  • evaluation of germplasm resources
  • germplasm innovation
  • molecular breeding
  • biological/abiotic stress
  • oil quality/yield characteristics

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Published Papers (1 paper)

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Research

19 pages, 3772 KiB  
Article
Phenotypic Diversity Analysis and Integrative Evaluation of Camellia oleifera Germplasm Resources in Ya’an, Sichuan Province
by Shiheng Zheng, Qingbo Kong, Hanrui Yan, Junjie Liu, Renke Tang, Lijun Zhou, Hongyu Yang, Xiaoyu Jiang, Shiling Feng, Chunbang Ding and Tao Chen
Plants 2025, 14(14), 2249; https://doi.org/10.3390/plants14142249 - 21 Jul 2025
Viewed by 367
Abstract
As a unique woody oil crop in China, Camellia oleifera Abel. germplasm resources show significant genetic diversity in Ya’an City. This study measured 60 phenotypic traits (32 quantitative, 28 qualitative) of 302 accessions to analyze phenotypic variation, establish a classification system, and screen [...] Read more.
As a unique woody oil crop in China, Camellia oleifera Abel. germplasm resources show significant genetic diversity in Ya’an City. This study measured 60 phenotypic traits (32 quantitative, 28 qualitative) of 302 accessions to analyze phenotypic variation, establish a classification system, and screen high-yield, high-oil germplasms. The phenotypic diversity index for fruit (H’ = 1.36–1.44) was significantly higher than for leaf (H’ = 1.31) and flower (H’ < 1), indicating genetic diversity concentrated in reproductive traits, suggesting potential genetic variability in these traits. Fruit quantitative traits (e.g., single fruit weight CV = 35.37%, fresh seed weight CV = 38.93%) showed high genetic dispersion. Principal component analysis confirmed the fruit factor and economic factor as main phenotypic differentiation drivers. Quantitative traits were classified morphologically, and correlation analysis integrated them into 13 key indicators classified using LSD and range methods. Finally, TOPSIS evaluation selected 10 excellent germplasms like TQ122 and TQ49, with fruit weight, fresh seed yield, and kernel oil content significantly exceeding the population average. This study provides data for C. oleifera DUS test guidelines and proposes a multi-trait breeding strategy, supporting high-yield variety selection and germplasm resource protection. Full article
(This article belongs to the Special Issue Genetic Diversity and Germplasm Innovation in Woody Oil Crops)
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