Traits and Genes in Wild Rice

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

Deadline for manuscript submissions: closed (25 October 2022) | Viewed by 3073

Special Issue Editor


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Guest Editor
Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Hyogo, Japan
Interests: rice domestication; genetic resources; genetic variation among wild natural populations; gene flow between cultivate and wild rice plants

Special Issue Information

Dear Colleagues,

The genus Oryza contains two cultivated species and more than 20 wild species. Compared with cultivated rice, wild rice species have many specific traits. Their useful traits can be utilized for rice breeding programs. On the other hand, many undesirable wild traits have been eliminated during the domestication of cultivated rice. In tropical countries, wild natural populations are frequently observed in wetland. They usually maintain high genetic variation within populations to survive under natural conditions. Beside the paddy fields, gene flow occurs between cultivated and wild plants. As mentioned above, wild rice contains a lot of interesting traits and genes, and the related studies have the potential to reveal new biological information. This Special Issue welcomes recent articles related to the traits and genes in wild rice based on various aspects, such as molecular, morphological, and ecological studies.

Prof. Takashige Ishii
Guest Editor

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Keywords

  • wild rice
  • useful traits
  • genetic resources
  • domestication
  • genetic variation
  • gene flow

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Published Papers (1 paper)

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Review

12 pages, 1983 KiB  
Review
Genetic Diversity of Weedy Rice and Its Potential Application as a Novel Source of Disease Resistance
by Aron Osakina and Yulin Jia
Plants 2023, 12(15), 2850; https://doi.org/10.3390/plants12152850 - 2 Aug 2023
Cited by 5 | Viewed by 2577
Abstract
Weeds that infest crops are a primary factor limiting agricultural productivity worldwide. Weedy rice, also called red rice, has experienced independent evolutionary events through gene flow from wild rice relatives and de-domestication from cultivated rice. Each evolutionary event supplied/equipped weedy rice with competitive [...] Read more.
Weeds that infest crops are a primary factor limiting agricultural productivity worldwide. Weedy rice, also called red rice, has experienced independent evolutionary events through gene flow from wild rice relatives and de-domestication from cultivated rice. Each evolutionary event supplied/equipped weedy rice with competitive abilities that allowed it to thrive with cultivated rice and severely reduce yields in rice fields. Understanding how competitiveness evolves is important not only for noxious agricultural weed management but also for the transfer of weedy rice traits to cultivated rice. Molecular studies of weedy rice using simple sequence repeat (SSR), restriction fragment length polymorphism (RFLP), and whole-genome sequence have shown great genetic variations in weedy rice populations globally. These variations are evident both at the whole-genome and at the single-allele level, including Sh4 (shattering), Hd1 (heading and flowering), and Rc (pericarp pigmentation). The goal of this review is to describe the genetic diversity of current weedy rice germplasm and the significance of weedy rice germplasm as a novel source of disease resistance. Understanding these variations, especially at an allelic level, is also crucial as individual loci that control important traits can be of great target to rice breeders. Full article
(This article belongs to the Special Issue Traits and Genes in Wild Rice)
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