Characterisation of Thinopyrum bessarabicum chromosomes through genome-wide introgressions into wheat

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Surbhi GrewalJulie King

Abstract

Genome-wide introgressions of Thinopyrum bessarabicum into wheat resulted in 12 recombinant lines. Cytological and molecular techniques allowed mapping of 1150 SNP markers across all seven chromosomes of the J genome. Thinopyrum bessarabicum (2n = 2x = 14, JJ) is an important source for new genetic variation for wheat improvement due to its salinity tolerance and disease resistance. Its practical utilisation in wheat improvement can be facilitated through development of genome-wide introgressions leading to a variety of different wheat-Th . bessarabicum translocation lines. In this study, we report the generation of 12 such wheat-Th . bessarabicum recombinant lines, through two different crossing strategies, which were characterized using sequential single colour and multi-colour genomic in situ hybridization (sc-GISH and mc-GISH), multi-colour fluorescent in situ hybridization (mc-FISH) and single nucleotide polymorphic (SNP) DNA markers. We also detected 13 lines containing different Th. bessarabicum chromosome aberrations through sc-GISH. Through a combination of molecular and cytological analysis of all the 25 lines containing Th. bessarabicum recombinants and chromosome aberrations we were able to physically map 1150 SNP m...Continue Reading

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Citations

Sep 19, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Hao LiJan Dvorak
Feb 15, 2020·Genetics and Molecular Biology·Rosilda Cintra de SouzaAna Christina Brasileiro-Vidal
Apr 8, 2020·Journal of Experimental Botany·José Fernández-GómezZoe A Wilson
Apr 22, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Lauren BakerJulie King
Apr 30, 2020·International Journal of Molecular Sciences·Caie ZhouWei Tong
Dec 18, 2019·Comparative Cytogenetics·Ekaterina D BadaevaAlexander V Agafonov
Jan 26, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jiale XuJan Dvorak
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Feb 16, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Andras CsehSurbhi Grewal
Aug 16, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Wei ZhangXiwen Cai
Mar 8, 2021·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Guotang YangQi Zheng

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Methods Mentioned

BETA
PCR
genotyping

Software Mentioned

BLAST
Metafer
MapChart
Affymetrix
ISIS
JoinMap
Graphical GenoTypes
GISH
sc

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