NDLI: Cytoplasmic effects of Brassica napus and B. juncea on extreme temperature stresses of B. carinata

Content Provider	Springer Nature Link
Author	Chang, Caitao Sun, Deling Kakihara, Fumika Hondo, Kana
Copyright Year	2015
Abstract	Alloplasmic lines of Brassica carinata were developed from the interspecific crosses B. napus × B. carinata and B. juncea × B. carinata followed by repeated backcrossing to B. carinata as the recurrent male parent up to the BC7 generation. The BC7 generations with cytoplasm of B. napus and B. juncea were designated NC-7 and JC-7, respectively, and the corresponding euplasmic lines were designated CN-7 and CJ-7, respectively. Four lines (NC-7 vs. CN-7 and JC-7 vs. CJ-7) were grown in a closed vinyl greenhouse at 55 °C and outdoors during winter in two cold regions of China (−3 to −10 °C) to investigate the heat and cold tolerance of the alloplasmic and euplasmic lines. Plants with the cytoplasm of B. napus showed lower leaf chlorophyll content and little difference in heat tolerance, whereas plants with the cytoplasm of B. juncea showed higher severity of heat injury compared with that of the euplasmic lines with cytoplasm of B. carinata. Alloplasmic plants with cytoplasm of B. napus and B. juncea showed decreased cold tolerance compared with that of euplasmic lines with cytoplasm of B. carinata. The difference in cold tolerance also was observed in the lethal temperature of the alloplasmic and euplasmic plants. The results suggest that tolerance of extreme temperature stress was controlled mainly by the nucleus but also was affected by the cytoplasm. Interaction between the maternal genome and nucleus was also observed.
Starting Page	335
Ending Page	342
Page Count	8
File Format	PDF
ISSN	00142336
Journal	Euphytica
Volume Number	204
Issue Number	2
e-ISSN	15735060
Language	English
Publisher	Springer Netherlands
Publisher Date	2015-02-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cold resistance Heat tolerance Lethal temperature Alloplasmic effect Chlorophyll fluorescence Wilt index Plant Sciences Plant Genetics & Genomics Plant Pathology Plant Physiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Horticulture Agronomy and Crop Science

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