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Project information
The origin and evolution of apomixis-related chromosomes in Boechera (Brassicaceae)

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Project Identification
GA21-06839S
Project Period
1/2021 - 12/2023
Investor / Pogramme / Project type
Czech Science Foundation
  • Standard Projects
MU Faculty or unit
Central European Institute of Technology

The genus Boechera (Brassicaceae), which is closely related to the model plant Arabidopsis thaliana, comprises c. 110 species distributed mainly in North America. The genus is characterized by a basic chromosome number of x = 7 and includes diploid sexuals (2n = 14), as well as diploid (2n = 14, 15) and triploid (2n = 21, 22) apomicts. Extensive morphological variation of the genus is a consequence of frequent hybridization among diploid species resulting in the origin of apomictic diploid hybrids. Triploids have arisen multiple times through hybridization between sexual and apomictic diploids. Two heterochromatic B-like chromosomes (Het and Del) have been described in apomictic Boechera plants. The proposed project aims to investigate genome structure and evolution of sexual and apomictic Boechera plants, elucidate the origins of apomixis-associated chromosomes and uncover the cytogenetic basis of apomixis in Boechera. A combination of state-of-the-art cytogenomics and phylogenomics approaches will be used to reach these goals.

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Publications

Total number of publications: 4

2023

2022

2021

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