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Domestication genes and stress adaptation genes in the genus Vigna for sustainable agriculture under stress environments

https://doi.org/10.34556/0002000762

名前 / ファイル	ライセンス	アクション
International_symp2016_-99-104 (168.2 KB)

Item type

国際農研デフォルトアイテムタイプ（フル）(1)

公開日

2025-03-19

タイトル

Domestication genes and stress adaptation genes in the genus Vigna for sustainable agriculture under stress environments

言語

その他のタイトル

ササゲ属植物が持つ栽培化・ストレス適応遺伝子の持続可能な農業への利用

言語

作成者

Tomooka, Norihiko

アクセス権

open access

アクセス権URI

http://purl.org/coar/access_right/c_abf2

主題

Genetic Resources, Evolution, Domestication, Adaptation, Symbiosis

内容記述

内容記述タイプ

Abstract

内容記述

I propose a novel breeding strategy "Neo-Domestication" for sustainable food production especially under stress environments. It is estimated that the world food production should be doubled before 2050. In the past 50 years, world food production had increased 2.5 - 3 times owing to the yield increase of a few major crops, which is called "Green Revolution". However, this system depended largely on irrigation (water resource), industrial fertilizers and pesticides (both produced by fossil energy) and resource consuming high yielding varieties. Therefore, it is far from sustainable and causes water resource deficit, soil salinization, environmental pollution, etc.
Present agriculture has used 11% of the world land. One approach to increase crop production is to use lands that are currently not suitable for crop production. These include lands with high salinity, high acidity, and high alkalinity, those that are drought prone and those that have water-logged environment. Even among the lands presently used for crop production, about 70% are categorized as problem soils. To achieve stable crop production on various problem soils, new crops that can grow well on these lands are needed. Hence, I propose "Neo-Domestication" of edible wild species already adapted to problem soils. Leguminous plants have an advantage in sustainable agriculture because of their ability of symbiotic N fixation.
As the causative change of the domestication gene is generally a "Loss-of-Function" type, "Neo- Domestication" could be achieved by mutation breeding. Screening process can be facilitated by gene screening using NGS-TILLING, in case a target gene sequence is known. Since 10 wild species had been domesticated to become crops in the genus Vigna, diverse domestication genes could be identified from Vigna crops and be used for NGS-TILLING during "Neo-Domestication". On the other hand, more than 100 wild Vigna species had evolved by adaptation to diverse stressful environments including problem soils. Hence, wild Vigna plants are considered as rich sources of stress adaptation genes. In addition to "Neo-Domestication", these domestication genes and stress adaptation genes could also be used for the breeding of other crops.

言語

内容記述

内容記述タイプ

Other

内容記述

JIRCAS International Symposium 2016, Session 2: Legumes all over the world : Use of the diversity for improvement
Chair: Kazuo Nakashima

言語

出版者

Japan International Research Center for Agricultural Sciences (JIRCAS)

言語

eng

資源タイプ

資源タイプ識別子

http://purl.org/coar/resource_type/c_c94f

資源タイプ

conference presentation

出版タイプ

VoR

出版タイプResource

http://purl.org/coar/version/c_970fb48d4fbd8a85

ID登録

10.34556/0002000762

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JaLC

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Ver.1

2025-03-19 02:53:04.396698

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Domestication genes and stress adaptation genes in the genus Vigna for sustainable agriculture under stress environments

× Tomooka, Norihiko

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