נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Novel mutation in the acetohydroxyacid synthase (AHAS), gene confers imidazolinone resistance in chickpea Cicer arietinum L. plants
Year:
2021
Source of publication :
Plants
Authors :
Bellalou, Aharon
;
.
Dor, Evgenia
;
.
Galili, Shmuel
;
.
Hershenhorn, Joseph
;
.
Segev, Orit
;
.
Smirnov, Evgeny
;
.
Volume :
Co-Authors:
Shmuel Galili

Joseph Hershenhorn

Marvin Edelman

Vladimir Sobolev

Evgeny Smirnov

Orit Amir-Segev

Aharon Bellalou

Evgenia Dor

 

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Chickpea (Cicer arietinum L.) is an important crop in crop-rotation management in Israel. Imidazolinone herbicides have a wide spectrum of weed control, but chickpea plants are sensitive to acetohydroxyacid synthase (AHAS; also known as acetolactate synthase [ALS]) inhibitors. Using the chemical mutagen ethyl methanesulfonate (EMS), we developed a chickpea line (M2033) that is resistant to imidazolinone herbicides. A point mutation was detected in one of the two genes encoding the AHAS catalytic subunit of M2033. The transition of threonine to isoleucine at position 192 (203 according to Arabidopsis) conferred resistance of M2033 to imidazolinones, but not to other groups of AHAS inhibitors. The role of this substitution in the resistance of line M2033 was proven by genetic transformation of tobacco plants. This resistance showed a single-gene semidominant inheritance pattern. Conclusion: A novel mutation, T192I (T203I according to Arabidopsis), providing resistance to IMI herbicides but not to other groups of AHAS inhibitors, is described in the AHAS1 protein of EMS-mutagenized chickpea line M2033.

Note:
Related Files :
acetohydroxyacid synthase (AHAS)
chickpea
Cicer arietinum L.
Herbicide resistance
imidazolinone herbicide
Mutagenesis
Show More
Related Content
More details
DOI :
10.3390/plants10122791
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
57352
Last updated date:
02/03/2022 17:27
Creation date:
27/12/2021 14:03
Scientific Publication
Novel mutation in the acetohydroxyacid synthase (AHAS), gene confers imidazolinone resistance in chickpea Cicer arietinum L. plants
Shmuel Galili

Joseph Hershenhorn

Marvin Edelman

Vladimir Sobolev

Evgeny Smirnov

Orit Amir-Segev

Aharon Bellalou

Evgenia Dor

 

Novel mutation in the acetohydroxyacid synthase (AHAS), gene confers imidazolinone resistance in chickpea Cicer arietinum L. plants

Chickpea (Cicer arietinum L.) is an important crop in crop-rotation management in Israel. Imidazolinone herbicides have a wide spectrum of weed control, but chickpea plants are sensitive to acetohydroxyacid synthase (AHAS; also known as acetolactate synthase [ALS]) inhibitors. Using the chemical mutagen ethyl methanesulfonate (EMS), we developed a chickpea line (M2033) that is resistant to imidazolinone herbicides. A point mutation was detected in one of the two genes encoding the AHAS catalytic subunit of M2033. The transition of threonine to isoleucine at position 192 (203 according to Arabidopsis) conferred resistance of M2033 to imidazolinones, but not to other groups of AHAS inhibitors. The role of this substitution in the resistance of line M2033 was proven by genetic transformation of tobacco plants. This resistance showed a single-gene semidominant inheritance pattern. Conclusion: A novel mutation, T192I (T203I according to Arabidopsis), providing resistance to IMI herbicides but not to other groups of AHAS inhibitors, is described in the AHAS1 protein of EMS-mutagenized chickpea line M2033.

Scientific Publication
You may also be interested in