Detailed Information on Publication Record
2023
High temperature increases centromere-mediated genome elimination frequency and enhances haploid induction in Arabidopsis
AHMADLI, Ulkar, Manikandan KALIDASS, Lucie CRHÁK KHAITOVÁ, Joerg FUCHS, Maria CUACOS et. al.Basic information
Original name
High temperature increases centromere-mediated genome elimination frequency and enhances haploid induction in Arabidopsis
Authors
AHMADLI, Ulkar, Manikandan KALIDASS, Lucie CRHÁK KHAITOVÁ (203 Czech Republic, belonging to the institution), Joerg FUCHS, Maria CUACOS, Dmitri DEMIDOV, Sheng ZUO (156 China, belonging to the institution), Jana PEČINKOVÁ (203 Czech Republic, belonging to the institution), Martin MASCHER, Mathieu INGOUFF, Stefan HECKMANN, Andreas HOUBEN, Karel ŘÍHA (203 Czech Republic, belonging to the institution) and Inna LERMONTOVA (guarantor)
Edition
Plant Communications, Elsevier, 2023, 2590-3462
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 10.500 in 2022
RIV identification code
RIV/00216224:14740/23:00132941
Organization unit
Central European Institute of Technology
UT WoS
001007275100001
Keywords in English
centromere; kinetochore null 2; CENPC-k; cenh3-4; temperature stress; haploid induction
Tags
International impact, Reviewed
Změněno: 9/10/2024 12:04, Mgr. Eva Dubská
Abstract
V originále
Double haploid production is the most effective way to create true-breeding lines in a single generation. In Arabidopsis, haploid induction via mutation of the centromere-specific histone H3 (cenH3) has been shown when the mutant is outcrossed to the wild-type, and the wild-type genome remains in the haploid progeny. However, factors that affect haploid induction are still poorly understood. Here, we report that a mutant of the cenH3 assembly factor Kinetochore Null2 (KNL2) can be used as a haploid inducer when pollinated by the wild-type. We discovered that short-term temperature stress of the knl2 mutant increased the efficiency of haploid induction 10-fold. We also demonstrated that a point mutation in the CENPC-k motif of KNL2 is sufficient to generate haploid-inducing lines, suggesting that haploid-inducing lines in crops can be identified in a naturally occurring or chemically induced mutant population, avoiding the generic modification (GM) approach at any stage. Furthermore, a cenh3-4 mutant functioned as a haploid inducer in response to short-term heat stress, even though it did not induce haploids under standard conditions. Thus, we identified KNL2 as a new target gene for the generation of haploid-inducer lines and showed that exposure of centromeric protein mutants to high temperature strongly increases their haploid induction efficiency.
Links
EF15_003/0000479, research and development project |
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