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Recent Advances in Rice and Tomato Molecular Breeding
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Recent Advances in Rice and Tomato Molecular Breeding

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Molecular Biology".

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4602

Special Issue Editors

Dr. Choon-Tak Kwon

E-Mail Website
Guest Editor
Department of Smart Farm Science/Horticultural Biotechnology, Kyung Hee University, Yongin 17104, Korea
Interests: plant breeding; tomato genetics; rice genetics; genome editing; plant architecture; meristem; flowering; development; environmental stress; yield
Dr. Kiyoon Kang

E-Mail Website
Guest Editor
Division of Life Sciences, Incheon National University, Incheon 22012, Korea
Interests: effects of light quality and phytochrome form on melatonin biosynthesis in rice

Special Issue Information

Dear Colleagues,

World population growth, climate change, global warming, and carbon neutrality profoundly impact food productivity. Rice and tomato are two major crops, representing monocot grains and eudicot vegetables. Through the development of molecular breeding, plant transformation, and genome editing for decades, the agricultural traits of rice and tomato have been dramatically improved and the latest high-throughput phenotyping tools enable the interpretation of new crop characteristics that have not been discovered and analyzed before. In particular, plant breeding goals are constantly changing due to environmental shifts. Plant breeding, thus, is required to adapt to new environments and cultivation methods in addition to traditional breeding goals for field-based cultivation.

This Special Issue aims to introduce the novel discoveries within rice and tomato breeding and the development of biological and computational tools regarding genetics, genomics, and phenomics areas. Original research articles, reviews, perspectives, and methods focusing on molecular breeding and cutting-edge technology for crop improvement are all welcome.

Dr. Choon-Tak Kwon
Dr. Kiyoon Kang
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

  • rice
  • tomato
  • plant development
  • drought stress
  • salinity stress
  • cold stress
  • heat stress
  • shoot architecture
  • inflorescence architecture
  • root architecture
  • genome editing
  • molecular breeding
  • grain productivity
  • fruit yield
  • high-throughput phenotyping
  • autonomous phenomics

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Published Papers (2 papers)

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Research

20 pages, 7492 KiB  
Article
The LHT Gene Family in Rice: Molecular Characterization, Transport Functions and Expression Analysis
by Tian Fan, Chunting Wu, Weiqi Yang, Tianxiao Lv, Yuping Zhou and Changen Tian
Plants 2023, 12(4), 817; https://doi.org/10.3390/plants12040817 - 12 Feb 2023
Cited by 1 | Viewed by 1581
Abstract
Amino acid transporters (AATs) are integral membrane proteins and play important roles in plant growth and development as well as environmental responses. In contrast to the amino acid permease (AAP) subfamily, functional studies of the lysine and histidine transporter (LHT) subfamily have not [...] Read more.
Amino acid transporters (AATs) are integral membrane proteins and play important roles in plant growth and development as well as environmental responses. In contrast to the amino acid permease (AAP) subfamily, functional studies of the lysine and histidine transporter (LHT) subfamily have not been made in rice. In the current study, six LHT genes were found in the rice genome. To further investigate the functions of these genes, analyses were performed regarding gene and protein structures, chromosomal locations, evolutionary relationships, cis-acting elements of promoters, gene expression, and yeast complementation. We found that the six OsLHT genes are distributed on 4 out of the 12 chromosomes and that the six OsLHT genes were grouped into two clusters based on the phylogenetic analysis. Protein structure analyses showed that each OsLHT protein has 11 helical transmembrane domains. Yeast complementation assays showed that these OsLHT genes have conserved transport substrates within each cluster. The four members from cluster 1 showed broad amino acid selectivity, while OsLHT5 and OsLHT6 may transport other substrates besides amino acids. Additionally, quantitative real-time PCR analysis of the six OsLHT genes revealed that they have different expression patterns at different developmental stages and in different tissues. It also revealed that some OsLHT genes were responsive to PEG, NaCl and cold treatments, indicating their critical roles in abiotic stress response. Our results will be useful for further characterizing the crucial biological functions of rice LHT genes. Full article
(This article belongs to the Special Issue Recent Advances in Rice and Tomato Molecular Breeding)
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17 pages, 4489 KiB  
Article
Genome-Wide Analysis of Cyclic Nucleotide-Gated Channel Genes Related to Pollen Development in Rice
by Su-Kyoung Lee, Soo-Min Lee, Myung-Hee Kim, Soon-Ki Park and Ki-Hong Jung
Plants 2022, 11(22), 3145; https://doi.org/10.3390/plants11223145 - 17 Nov 2022
Cited by 7 | Viewed by 2563
Abstract
In the angiosperm, pollen germinates and rapidly expands the pollen tube toward the ovule. This process is important for plant double fertilization and seed setting. It is well known that the tip-focused calcium gradient is essential for pollen germination and pollen tube growth. [...] Read more.
In the angiosperm, pollen germinates and rapidly expands the pollen tube toward the ovule. This process is important for plant double fertilization and seed setting. It is well known that the tip-focused calcium gradient is essential for pollen germination and pollen tube growth. However, little is known about the Ca2+ channels that play a role in rice pollen germination and tube growth. Here, we divided the 16 cyclic nucleotide-gated channel (CNGC) genes from rice into five subgroups and found two subgroups (clades II and III) have pollen-preferential genes. Then, we performed a meta-expression analysis of all OsCNGC genes in anatomical samples and identified three pollen-preferred OsCNGCs (OsCNGC4, OsCNGC5, and OsCNGC8). The subcellular localization of these OsCNGC proteins is matched with their roles as ion channels on the plasma membrane. Unlike other OsCNGCs, these genes have a unique cis-acting element in the promoter. OsCNGC4 can act by forming a homomeric complex or a heteromeric complex with OsCNGC5 or OsCNGC8. In addition, it was suggested that they can form a multi-complex with Mildew Resistance Locus O (MLO) protein or other types of ion transporters, and that their expression can be modulated by Ruptured Pollen tube (RUPO) encoding receptor-like kinase. These results shed light on understanding the regulatory mechanisms of pollen germination and pollen tube growth through calcium channels in rice. Full article
(This article belongs to the Special Issue Recent Advances in Rice and Tomato Molecular Breeding)
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