Genetic Diversity in Conifer Forests

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Genetics and Molecular Biology".

Deadline for manuscript submissions: closed (30 July 2023) | Viewed by 2234

Special Issue Editors

Department of Ecology and Environmental Sciences, Umeå University, Umea, Sweden
Interests: evolutionary biology; genetic diversity; phylogenomics; conifer; population genomics; introgression; landscape genomics
Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
Interests: genetic diversity; conifer; population genetics; hybridization; adaptive evolution

Special Issue Information

Dear Colleagues,

The origin and distribution of genetic diversity across landscapes determines the ability of forest tree species to sustain environmental change. Conifers are foundation species that cover large parts of the Northern Hemisphere and play a vital role in maintaining regional ecosystems. Despite their worldwide ecological and economic importance, conifer species have been understudied at the genomic level due in part to their large genome sizes. The rapid development of sequencing technologies and bioinformatics pipelines is providing unprecedented insights into the genome-wide genetic variation in conifers, aiding in understanding how their contemporary genetic variation has been shaped by various evolutionary forces, and how species respond to climate change challenges. This Special Issue is seeking contributions on genome-wide genetic diversity investigation in conifer species. These studies should provide important references for forest resource management, breeding and conservation actions.

Dr. Wei Zhao
Dr. Jie Gao
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. Forests is an international peer-reviewed open access monthly 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 2600 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

  • conifer
  • genetic diversity
  • sustainability
  • climate change
  • adaptation

Published Papers (1 paper)

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Research

20 pages, 3623 KiB  
Article
Plastome Phylogenomics Provide Insight into the Evolution of Taxus
by Xiaoming Jia, Shijing Feng, Huanling Zhang and Xiping Liu
Forests 2022, 13(10), 1590; https://doi.org/10.3390/f13101590 - 29 Sep 2022
Cited by 2 | Viewed by 1748
Abstract
The taxonomy of an ancient gymnosperm genus Taxus, with high value in horticulture and medicine, is perplexing because of few reliable morphological characters for diagnosing species. Here, we performed a comprehensive investigation of the evolutionary dynamics of Taxus chloroplast genomes and estimated [...] Read more.
The taxonomy of an ancient gymnosperm genus Taxus, with high value in horticulture and medicine, is perplexing because of few reliable morphological characters for diagnosing species. Here, we performed a comprehensive investigation of the evolutionary dynamics of Taxus chloroplast genomes and estimated phylogenetic relationships, divergence times, and ancestral distributions of Taxus species by comparing 18 complete chloroplast genomes. The variations across the chloroplast genome of different Taxus species indicated that remarkably varied genome variations across lineages have reshaped the genome architecture. Our well-resolved phylogeny supported that T. brevifolia Nutt. was basal lineages followed by the other North America lineages. Divergence time estimation and ancestral range reconstruction suggested that the Taxus species originated in North America in the Late Cretaceous and revealed that extant Taxus species shared a common ancestor whose ancestral distribution area was probably in North America and afterwards the earliest members expanded to Southeast Asia from where Chinese Taxus species originated. The predominant European species have more closer relationship with the Eastern Asian species and the speciation of Eurasia species arose from several dispersal and vicariance events in the Miocene. Genome-wide scanning revealed 18 positively selected genes that were involved in translation and photosynthesis system in Taxus, which might be related to the adaptive evolution of Taxus species. The availability of these complete chloroplast genomes not only enhances our understanding of the elusive phylogenetic relationships and chloroplast genome evolution such as conservation, diversity, and gene selection within Taxus genus but also provides excellent templates and genetic bases for further exploration of evolution of related lineages as well as for plant breeding and improvement. Full article
(This article belongs to the Special Issue Genetic Diversity in Conifer Forests)
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