Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia
The monophyletic duckweeds comprising five genera within the monocot order Alismatales are neotenic, free-floating, aquatic organisms with fast vegetative propagation. Some species are considered for efficient biomass production, for life stock feeding, and for (simultaneous) wastewater phytoremedi...
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2022
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Thư viện Trường Đại học Đà Lạt |
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English |
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The monophyletic duckweeds comprising five genera within the monocot order Alismatales are neotenic,
free-floating, aquatic organisms with fast vegetative propagation. Some species are considered for efficient biomass production, for life stock feeding, and for (simultaneous) wastewater phytoremediation. The ancestral genus Spirodela consists of only two species, Spirodela polyrhiza and Spirodela intermedia, both with a similar small genome (~160 Mbp/1C). Reference genome drafts and a physical map of 96 BACs on the 20 chromosome pairs of S. polyrhiza strain 7498 are available and provide useful tools for further evolutionary studies within and between duckweed genera. Here we applied sequential comparative multicolor fluorescence in situ hybridization (mcFISH) to address homeologous chromosomes in S. intermedia (2n = 36), to detect chromosome rearrangements between both species and to elucidate the mechanisms which may have led to the chromosome number alteration after their evolutionary separation. Ten chromosome pairs proved to be conserved between S. polyrhiza and S. intermedia, the remaining ones experienced,
depending on the assumed direction of evolution, translocations, inversion, and fissions, respectively. These
results represent a first step to unravel karyotype evolution among duckweeds and are anchor points for future genome assembly of S. intermedia. |
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Journal article |
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Phuong T. N. Hoang Ingo Schubert |
| spellingShingle |
Phuong T. N. Hoang Ingo Schubert Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| author_facet |
Phuong T. N. Hoang Ingo Schubert |
| author_sort |
Phuong T. N. Hoang |
| title |
Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| title_short |
Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| title_full |
Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| title_fullStr |
Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| title_full_unstemmed |
Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia |
| title_sort |
reconstruction of chromosome rearrangements between the two most ancestral duckweed species spirodela polyrhiza and s. intermedia |
| publishDate |
2022 |
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http://scholar.dlu.edu.vn/handle/123456789/1571 |
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1768306089143566336 |
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oai:scholar.dlu.edu.vn:123456789-15712022-11-09T06:44:26Z Reconstruction of chromosome rearrangements between the two most ancestral duckweed species Spirodela polyrhiza and S. intermedia Phuong T. N. Hoang Ingo Schubert The monophyletic duckweeds comprising five genera within the monocot order Alismatales are neotenic, free-floating, aquatic organisms with fast vegetative propagation. Some species are considered for efficient biomass production, for life stock feeding, and for (simultaneous) wastewater phytoremediation. The ancestral genus Spirodela consists of only two species, Spirodela polyrhiza and Spirodela intermedia, both with a similar small genome (~160 Mbp/1C). Reference genome drafts and a physical map of 96 BACs on the 20 chromosome pairs of S. polyrhiza strain 7498 are available and provide useful tools for further evolutionary studies within and between duckweed genera. Here we applied sequential comparative multicolor fluorescence in situ hybridization (mcFISH) to address homeologous chromosomes in S. intermedia (2n = 36), to detect chromosome rearrangements between both species and to elucidate the mechanisms which may have led to the chromosome number alteration after their evolutionary separation. Ten chromosome pairs proved to be conserved between S. polyrhiza and S. intermedia, the remaining ones experienced, depending on the assumed direction of evolution, translocations, inversion, and fissions, respectively. These results represent a first step to unravel karyotype evolution among duckweeds and are anchor points for future genome assembly of S. intermedia. 2022-11-09T02:54:27Z 2022-11-09T02:54:27Z 2017-07 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter http://scholar.dlu.edu.vn/handle/123456789/1571 10.1007/s00412-017-0636-7 en Chromosoma 1432-0886 Appenroth K-J, Teller S, Horn M (1996) Photophysiology of turion formation and germination in Spirodela polyrhiza. Biol Plant 38(1):95– 106. doi:10.1007/bf02879642 Bog M, Lautenschlager U, Landrock MF, Landolt E, Fuchs J, Sowjanya Sree K, Oberprieler C, Appenroth K-J (2015) Genetic characterization and barcoding of taxa in the genera Landoltia and Spirodela (Lemnaceae) by three plastidic markers and amplified fragment length polymorphism (AFLP). 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