Top > Search of International Patents > HEAT-TOLERANT TOMATO MUTANT AND METHOD FOR PRODUCING SAME

HEAT-TOLERANT TOMATO MUTANT AND METHOD FOR PRODUCING SAME

Foreign code F160008802
File No. (S2014-1629-N0)
Posted date Aug 4, 2016
Country WIPO
International application number 2015JP077186
International publication number WO 2016047778
Date of international filing Sep 25, 2015
Date of international publication Mar 31, 2016
Priority data
  • P2014-195891 (Sep 25, 2014) JP
Title HEAT-TOLERANT TOMATO MUTANT AND METHOD FOR PRODUCING SAME
Abstract Provided is a heat-tolerant tomato plant having a high ability of forming seed-containing fruits under high-temperature conditions. The present invention relates to: a method for producing a heat-tolerant tomato plant, which comprises introducing a genetic mutation for improving the pollen survival rate and the ability of forming seed-containing fruits under high-temperature conditions compared with those of a wild-type plant into a tomato plant; and a heat-tolerant tomato plant having the mutation introduced thereinto.
Outline of related art and contending technology BACKGROUND ART
Higher plants a high temperature, low temperature, dry, salt, such as a metal, exposed to various environmental stresses. Among the various environmental stresses, thermal stress due to high temperatures to cause the growth of a plant can lead to serious disorders, world (Peet, M.M., Willits, D.H., (1998) Agric. Forest Meteorol., 92, p.191-202 large influence on the agricultural production; Hall, A.E., (2001) Crop Responses to Environment. CRC Press LLC, Boca Raton, Florida). Panel Nations (Intergovernmental Panel on Climatic Change) et al. reported that the, the effect of global warming, an average temperature of one century in the world and is raised in increments of 0.3 °C, a current in the year 2100 and is predicted to average 3 °C and the temperature rises, such a problem is more severe in the future becomes the expected (Jones, P.D., et al., (1999) Rev. Geophys., 37, p.173-199; Porter, J.R., (2005) Nature 436, p.174).
In the cultivated tomato, with domesticated anniversary, tomato pollen fertility summer due to high temperatures due to a decrease in the effects of adhesion failure, and small beads, such as a reduction in quality have been reported many growth failure. Adhesion of the effects of high temperature phase defect, pollen fertility reduction in pollen development failure and are a major cause. In order to solve such a problem, the application of heat tolerance plants using various methods have been made. As a chemical spray technology, the high-temperature stress resistance imparting agent for agricultural and horticultural plants by spraying, to reduce the high-temperature stress under high temperature conditions, in a manner conducive to healthy growth has been known (Japanese Patent Application JP-11-199419). As the gene recombinant technology, express the small heat shock protein derived from tomato by mitochondrial type, heat tolerance to the tobacco transformation is applied to a known method (Japanese Patent Application JP-2002-95370). Further, facility, as a measure of the cultivation method, the highest sensitivity to high temperature during stamen development including growth effectively only buds of the development of devices and cooled to a suitable temperature, and the effects of promoting the growth of attached also known (International Publication WO2007/058347). However, such a conventional heat tolerance in a plant of the name applying, economy, environmental load, and/or a problem with respect to workability. Therefore, the effects of high temperature stability is ensured also in the deposition of the species is an urgent need for the breeding has heat tolerance. Further, as the heat tolerance of the varieties of the seed parent breeding even under the high-normal fruit can be efficiently formed having the type required. However, such heat tolerance of the varieties of efficient breeding methods has not been established.
Scope of claims (In Japanese)[請求項1]
野生型と比較して高温条件下における種子を有する果実の形成能を向上させる遺伝的変異を、トマト植物に導入することを含む、耐暑性トマト植物の作出方法。
[請求項2]
前記変異が、受託番号FERM BP-22278で表されるJHT06系統に由来する、請求項1に記載の方法。
[請求項3]
前記変異が、高温条件下における、花粉生存率、並びに種子を有する果実の形成比率及び収量を向上させる、請求項1又は2に記載の方法。
[請求項4]
前記変異が、野生型と比較して葉の葉緑素含量の増加をさらにもたらす、請求項1~3のいずれか1項に記載の方法。
[請求項5]
前記変異が、表3に記載の少なくとも1つの遺伝子における非同義変異又は遺伝子欠損である、請求項1~4のいずれか1項に記載の方法。
[請求項6]
前記変異を導入したトマト植物を35℃~40℃の温度に曝露することを含む、請求項1~5のいずれか1項に記載の方法。
[請求項7]
請求項1~6に記載の方法により作出される、前記変異が導入された耐暑性トマト植物。
[請求項8]
受託番号FERM BP-22278で表されるJHT06系統又は前記変異を保持するその派生株である、請求項7に記載の耐暑性トマト植物。
[請求項9]
請求項7又は8に記載の耐暑性トマト植物を育種親として、他のトマト植物と交配し、子孫植物として前記変異を有するトマト植物を取得することを含む、耐暑性トマト植物の育種方法。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • UNIVERSITY OF TSUKUBA
  • CENTRAL JAPAN RAILWAY COMPANY
  • Inventor
  • EZURA Hiroshi
  • HOSHIKAWA Ken
  • FUKUMOTO Shoma
  • OOSHIMA Sayaka
  • AIBA Mina
IPC(International Patent Classification)
Specified countries National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
Please contact us by E-mail or facsimile if you have any interests on this patent.

PAGE TOP

close
close
close
close
close
close