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Genetic Breeding of Trees
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Genetic Breeding of Trees

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 April 2025 | Viewed by 2652

Special Issue Editors

Dr. Wenhao Bo

E-Mail Website
Guest Editor
State Key Laboratory of Efficient Production of Forest Resources, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
Interests: forest genomics; forest phenomics; genetic improvement in forest
Prof. Dr. Jinhuan Chen

E-Mail Website
Guest Editor
State Key Laboratory of Efficient Production of Forest Resources, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
Interests: trees breeding; tree genetics; plant stress response

Special Issue Information

Dear Colleagues,

Forests provide multitude of resources such as timber, paper, medicinal materials, food, and industrial materials, which play a vital role in soil and water conservation, climate regulation, and the maintenance of biodiversity, forming an essential part of terrestrial ecosystems. With the impacts of climate change and increasing demands from human populations, the genetic improvement of forest trees becomes increasingly crucial for both basic research and applications in forestry. It can enhance the adaptability, growth rate, and production and quality of timber, food, and medicinal products of tree species, as well as the ability to resist biotic and abiotic stresses. This Special Issue aims to collect and showcase the latest research findings and advancements in the field of the genetic breeding of trees.

Topics of interest for the issue include but are not limited to:

  • New strategies and methods for the genetic improvement of tree species;
  • Evaluation of tree genetic resources;
  • Application of molecular markers and genomics in tree species improvement;
  • The biotechnology in the genetic improvement of forest trees;
  • Genetic basis studies on the adaptability of forest trees to environmental changes;
  • Genetic breeding for resistance to biotic and abiotic stresses;
  • The relationship between forest ecosystem services and genetic breeding.
  • Flowering and pollination rules and its molecular mechanism of forest plants

We invite researchers, scholars, and practitioners from around the globe to submit their original research and review articles on tree species genetic improvement, genomics, molecular biology, the management and conservation of genetic resources, and related fields.

Dr. Wenhao Bo
Prof. Dr. Jinhuan Chen
Guest Editors

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

  • tree genomics
  • tree species genetic improvement
  • adaptive genetics in forestry
  • forest genetic resources
  • biotechnology in tree breeding
  • molecular markers in forestry
  • biotic and abiotic stress resistance in trees
  • forest biodiversity conservation
  • wood quality improvement
  • forest tree phenotyping
  • genetic diversity and tree conservation

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Published Papers (3 papers)

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Research

14 pages, 2123 KiB  
Article
Parental Reconstruction from a Half-Sib Population of Stoneless Jujube Ziziphus jujuba Mill. Based on Individual Specific SNP Markers Using Multiplex PCR
by Muhammad Tahir, Yue Ren, Bo Wu, Meiyu Li, Mohamed Refaiy, Ming Cao, Decang Kong and Xiaoming Pang
Plants 2024, 13(22), 3163; https://doi.org/10.3390/plants13223163 - 11 Nov 2024
Viewed by 441
Abstract
The selection of unique and individual-specific SNPs is important as compared with universal SNPs for individual identification. Therefore, the main significance of this research is the selection of specific SNPs in male parent and the identification of offspring with these specific SNPs in [...] Read more.
The selection of unique and individual-specific SNPs is important as compared with universal SNPs for individual identification. Therefore, the main significance of this research is the selection of specific SNPs in male parent and the identification of offspring with these specific SNPs in their genome by multiplex PCR, which is utilized for genotyping of 332 half-sib plants of Ziziphus jujuba.This cost-effective method makes as much as possible to utilize the same amount of each pair of various targeted loci primers. After PCR amplification of targeted genome parts, the mixed products can be directly used in a next-generation sequencing platform. We concomitantly amplified 10 unique SNP loci at 10 different chromosomes of male JingZao 39 plants in 332 half-sib plants and sequenced them on the Illumina Novaseq 6000 platform. Analysis of SNP genotyping accuracy of 332 half-sib plants showed that all 10 unique SNPs in all 332 plants were correctly amplified in this multiplex PCR method. Furthermore, based on Mendelian inheritance, we identified 124 full-sib plants that have 10 unique SNPs in their genomes. These results were further confirmed by whole genome resequencing of 82 randomly selected half-sib plants, and the identity-by-descent values of all full-sib plants were between 0.4399 to 0.5652. This study displayed a cost-effective multiplex PCR method and proper identification of pollen parent through specific SNPs in half-sib progenies and firstly obtained a full-sib population between ‘Wuhezao’ and ‘JingZao 39’, segregating for stone and stoneless fruit. Full article
(This article belongs to the Special Issue Genetic Breeding of Trees)
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13 pages, 4416 KiB  
Article
Genome-Wide Characterization and Development of Simple Sequence Repeat Markers for Molecular Diversity Analyses in Yellowhorn (Xanthoceras sorbifolium Bunge)
by Xiaoming Yang, Yuan Wang, Yuewen Yang, Tuya Shareng, Yukun Xing, Gaowa Bai, Zhongyu Xing, Yuanyuan Ji, Liling Liu and Gongxiang Cao
Plants 2024, 13(19), 2794; https://doi.org/10.3390/plants13192794 - 5 Oct 2024
Viewed by 603
Abstract
Yellowhorn (Xanthoceras sorbifolium Bunge) is a valuable ornamental, medicinal, and woody oilseed species that is indigenous to China. The breeding improvement of yellowhorn has been hindered by a lack of suitable markers and sufficient information regarding the molecular diversity of this species. [...] Read more.
Yellowhorn (Xanthoceras sorbifolium Bunge) is a valuable ornamental, medicinal, and woody oilseed species that is indigenous to China. The breeding improvement of yellowhorn has been hindered by a lack of suitable markers and sufficient information regarding the molecular diversity of this species. In this study, we conducted a comprehensive analysis of the yellowhorn genome to characterize the simple sequence repeat (SSR) loci. A total of 4,007,201 SSRs were successfully identified. Among these markers, mono-nucleotide SSRs were most abundant in the genome, while the tri-nucleotide SSRs accounted for the highest proportion in coding sequences. The GO and KEGG function enrichment analysis revealed that most SSR loci in coding sequences were associated with potential biological functions. Additionally, we used 30 pairs of primers to amplify SSR markers to gain a better understanding of the genetic variation in yellowhorn germplasms. The average values of observed heterozygosity and polymorphism information content were 0.625 and 0.517, respectively. Population structure, phylogeny and principal component analyses identified two distinct subclusters. Furthermore, yellowhorn germplasms with the same geographical distribution tended to group together. Moreover, a total of 26 yellowhorn core collections, which accounted for approximately 14.94% of the total yellowhorn germplasms, effectively represented the genetic diversity of all original germplasms. Our findings not only unveiled the genetic diversity and population structure of yellowhorn germplasms but also investigated the yellowhorn core collection, which will serve as a strong basis for yellowhorn management and genetic improvement. Full article
(This article belongs to the Special Issue Genetic Breeding of Trees)
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14 pages, 2551 KiB  
Article
Identification of Key Genes of Fruit Shape Variation in Jujube with Integrating Elliptic Fourier Descriptors and Transcriptome
by Yue Ren, Wenqing Fu, Yi Gao, Yuhan Chen, Decang Kong, Ming Cao, Xiaoming Pang and Wenhao Bo
Plants 2024, 13(9), 1273; https://doi.org/10.3390/plants13091273 - 5 May 2024
Viewed by 1085
Abstract
Jujube (Ziziphus jujuba) exhibits a rich diversity in fruit shape, with natural occurrences of gourd-like, flattened, and other special shapes. Despite the ongoing research into fruit shape, studies integrating elliptical Fourier descriptors (EFDs) with both Short Time-series Expression Miner (STEM) and [...] Read more.
Jujube (Ziziphus jujuba) exhibits a rich diversity in fruit shape, with natural occurrences of gourd-like, flattened, and other special shapes. Despite the ongoing research into fruit shape, studies integrating elliptical Fourier descriptors (EFDs) with both Short Time-series Expression Miner (STEM) and weighted gene co-expression network analysis (WGCNA) for gene discovery remain scarce. In this study, six cultivars of jujube fruits with distinct shapes were selected, and samples were collected from the fruit set period to the white mature stage across five time points for shape analysis and transcriptome studies. By combining EFDs with WGCNA and STEM, the study aimed to identify the critical periods and key genes involved in the formation of jujube fruit shape. The findings indicated that the D25 (25 days after flowering) is crucial for the development of jujube fruit shape. Moreover, ZjAGL80, ZjABI3, and eight other genes have been implicated to regulate the shape development of jujubes at different periods of fruit development, through seed development and fruit development pathway. In this research, EFDs were employed to precisely delineate the shape of jujube fruits. This approach, in conjunction with transcriptome, enhanced the precision of gene identification, and offered an innovative methodology for fruit shape analysis. This integration facilitates the advancement of research into the morphological characteristics of plant fruits, underpinning the development of a refined framework for the genetic underpinnings of fruit shape variation. Full article
(This article belongs to the Special Issue Genetic Breeding of Trees)
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