タイトル

開講年度 開講学部等
2026 農学部
開講学期 曜日時限 授業形態 AL（アクティブ・ラーニング）ポイント
前期前半 水1～4    
時間割番号 科目名[英文名] 使用言語 単位数
1071710118 植物育種学[Plant Breeding] 日本語 2
担当教員（責任）[ローマ字表記] メディア授業
執行 正義[SHIGYO Masayoshi] ー
担当教員[ローマ字表記]
執行 正義　[SHIGYO Masayoshi]
特定科目区分   対象学生   対象年次 3～
ディプロマ・ポリシーに関わる項目 カリキュラムマップ(授業科目とDPとの対応関係はこちらから閲覧できます)
授業の目的と概要
This course systematically covers plant breeding from its historical origins to the latest molecular breeding techniques, following the textbook. After understanding plant classification, reproduction patterns, and the fundamentals of genetics, students will learn breeding methods tailored to plant characteristics such as self-fertility, cross-fertility, and vegetative propagation. They will also study techniques utilizing polyploidy and mutations, and explore the cutting edge of molecular breeding, including genome editing. Furthermore, the course will deepen consideration of global challenges such as food security and the sustainable use of genetic resources.
授業の到達目標
• Understand the history of plant breeding and the development of breeding science alongside historical shifts, along with its contributions to humanity.
• Be able to explain appropriate breeding theories based on plant reproductive and propagation patterns.
• Master the principles and practical examples of F1 breeding, mutation breeding, tissue culture, and molecular breeding (DNA markers, genome editing, etc.).
• Articulate personal perspectives on the international landscape surrounding genetic resources and the role of plant breeding in the future global environment.
授業計画
【全体】
Each session will be based on the corresponding chapter in the textbook Essential Plant Breeding.
項目 内容 授業時間外学習 備考
第1回 History of plant breeding World population and food challenges, The creation of cultivated plants, The rediscovery of mendel's Laws The students have to conduct 4 hours of preparatory study according to the lesson plan and reference books.
第2回 Plant genetic resources and breeding Definition, origin, collection, and preservation of genetic resources The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第3回 Fundamentals of genetics Laws of inheritance, Inheritance of chromosomes and genes, Quantitative traits, Epigenetics The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第4回 Principles and basic techniques of plant breeding Definition, Classification, Reproductive and propagation methods, Breeding goals and processes The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第5回 Breeding of cross-fertilizing plant Cross-pollination mechanism, Hybrid vigor, Mass selection, Synthetic variety, Recurrent selection
 		The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第6回 F1 hybrid breeding Characteristics of F1 variety, Breeding methods, F1 Seed Production Technology The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第7回 Breeding of self-fertilizing plant Characteristics, origins, and specific breeding methods (such as pedigree selection) of self-fertilizing plants The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第8回 Breeding of vegetatively propagated plants Genetic characteristics, Cross breeding, Selection of mutants The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan. Session 8 will be offered on-demand, with the midterm exam conducted in person. The midterm exam will cover material from Sessions 1 through 7.
第9回 Genome and polyploidy breeding Production and utilization of polyploids and haploids, Genome analysis The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第10回 Mutation breeding Induction by mutagen, Selection of mutants and its practical utilization The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第11回 Wide cross breeding Mechanisms of reproductive isolation, Amphidoploid, Examples of wide cross The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第12回 Plant Breeding using tissue culture Totipotency, Tissue culture, Somaclonal variation, Cell fusion The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第13回 Fundamentals of molecular breeding Gene cloning, Genome sequencing, Genes utilized for breeding The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第14回 Practical Molecular Breeding DNA marker-assisted breeding, Gene recombination, Genome editing The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第15回 The situation surrounding genetic resources Sustainable utilization, Domestic and international conditions, Prospects for breeding science The students have to conduct 2 hours of preparatory study 2 hours of review according to the lesson plan.
第16回 Final examination Overview The students have to conduct 4 hours of review study according to the provided material.
※AL（アクティブ・ラーニング）欄に関する注
・授業全体で、AL（アクティブ・ラーニング）が占める時間の割合を、それぞれの項目ごとに示しています。
・A〜Dのアルファベットは、以下の学修形態を指しています。
【A：グループワーク】、【B：ディスカッション・ディベート】、【C：フィールドワーク（実験・実習、演習を含む）】、【D：プレゼンテーション】
A: --%　B: --%　C: --%　D: --%
成績評価法
The lecturer evaluates with midterm (50%) and final examination (50%) score.
教科書にかかわる情報
教科書 書名 エッセンシャル植物育種学 : 農学系のための基礎 ISBN 9784065308158
著者名 國武久登, 執行正義, 平野智也編著 ; 神戸敏成 [ほか] 著 出版社 講談社 出版年 2023
備考
The lecturer provide the material instead of textbook.
参考書にかかわる情報
参考書 書名 遺伝学の基礎　第２版 ISBN 9784254405491
著者名 北柴大泰, 西尾剛 出版社 朝倉書店 出版年 2018
備考
None
メッセージ
The students have to review thoroughly the content learned in Genetics and Botechnology. The lecture includes its advanced contents.
キーワード
Plant breeding, Genetics and Biotechnology
持続可能な開発目標（SDGs）

  • 飢餓をゼロに
  • 産業と技術革新の基盤をつくろう
  • つくる責任つかう責任
  • Life on land
(飢餓)飢餓を終わらせ、食料安全保障及び栄養改善を実現し、持続可能な農業を促進する。
(インフラ、産業化、イノベーション)強靱（レジリエント）なインフラ構築、包摂的かつ持続可能な産業化の促進及びイノベーションの推進を図る。
(持続可能な生産と消費)持続可能な生産消費形態を確保する。
(陸上資源)陸域生態系の保護、回復、持続可能な利用の推進、持続可能な森林の経営、砂漠化への対処、ならびに土地の劣化の阻止・回復及び生物多様性の損失を阻止する。
関連科目
Genetics and Botechnology
履修条件
連絡先
shigyo@yamaguchi-u.ac.jp
Laboratory: 330, 3F, Agriculture faculty
オフィスアワー
Anytime (Prior appointment is necessary by e-mail)

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