Genome sizes of grasses (Poaceae), chromosomal evolution, paleogenomics and the ancestral grass karyotype (AGK)

Plant Systematics and Evolution, Год журнала: 2025, Номер 311(1)

Опубликована: Янв. 5, 2025

Abstract Grasses are one of the largest angiosperm families, widespread and economically important. Variation in genome size has functional consequences is an essential parameter for understanding evolutionary patterns. In this study, we report nuclear sizes (2C values) 32 species subspecies from 27 genera Poaceae, including most its subfamilies, examined by flow cytometry. Obtained were analyzed together with chromosome numbers to give information on monoploid sets base number x mean then supplemented previously published data obtain a deeper insight into evolution grasses. Monoploid genomes < 0.6 pg/1Cx chromosomes 0.1 pg presumably characteristic subfamilies Arundinoideae, Chloridoideae, Micrairoideae Oryzoideae. The larger 1Cx values (1.2–1.8 pg) evolutionarily ‘early diverging’ Anomochlooideae Pharoideae discussed context origin grasses pan-grass whole-genome duplication. indicate that ancestral grass had size, which less than half assumed. Genome available support concept karyotype (AGK) = 12. AGK seems have been conserved some (Bambusoideae, Oryzoideae, Pharoideae, parts Pooideae), while major rearrangements lineage-specific occurred after separation BOP PACMAD clades, i.e. when diversification their begun.

Язык: Английский

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Genome size variation and whole-genome duplications in the monocot order Poales

Plant Systematics and Evolution, Год журнала: 2025, Номер 311(1)

Опубликована: Янв. 22, 2025

Язык: Английский

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Tribe Paniceae Cereals with Different Ploidy Levels: Setaria italica, Panicum miliaceum, and Echinochloa esculenta

Genes, Год журнала: 2025, Номер 16(4), С. 426 - 426

Опубликована: Апрель 1, 2025

Plants have repeatedly undergone whole-genome duplication during their evolutionary history. Even in modern plants, there is diversity ploidy within and between species, providing a snapshot of the turnover ploidy. Here, I will review evolution genome constitution, focusing on millet species Setaria italica, Panicum miliaceum, Echinochloa esculenta. These are all historically important cereal crops that been domesticated East Asia. They display basic chromosome set nine, but they diploid, tetraploid, hexaploid, respectively. The timing different among as extent gene family expansion loss. There also exists complex subgenomic wild each genus. three related suitable models for elucidating molecular by comparative genomic analysis.

Язык: Английский

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Flow cytometry in conservation: detecting hybridization risks in threatened plant species

Biodiversity and Conservation, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Язык: Английский

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Reductional dysploidy and genome size diversity in Pooideae, the largest subfamily of grasses (Poaceae)

Plant Systematics and Evolution, Год журнала: 2025, Номер 311(3)

Опубликована: Май 9, 2025

Abstract The nuclear genome sizes of 59 species from 33 genera the Poaceae subfamily Pooideae were investigated by flow cytometry. This is characterized a wide range holoploid (2C values) and monoploid (1Cx mean chromosome sizes, including both highest some lowest values entire grass family. For example, tribe Brachypodieae has smallest genomes chromosomes, followed majority Stipeae individual representatives tribes Ampelodesmeae, Duthieeae Meliceae, which belong to phylogenetically ‘early-diverging’ lineages. Comparatively large found in Lygeeae Meliceae. ‘core Pooideae’ had largest subfamily, with greatest variation Aveneae, Festuceae Poeae. Bromeae especially Triticeae, includes wheat related crops, larger minimum compared other tribes. It appears that occurrence exclusively rather (> 3.4 pg/1Cx) chromosomes (MC ≥ 0.5 pg) restricted Triticeae. origin x = 7 12 lineages was apparently not an increase size, whereas fusion caused size. evolutionary aspects base number are discussed, new numbers presented, first polyploid (2 n 4 20) model plant Brachypodium distachyon s.s.

Язык: Английский

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Chromosomenzahlen von Farn- und Samenpflanzen aus Deutschland 18

Kochia, Год журнала: 2025, Номер 18, С. 247 - 252

Опубликована: Май 13, 2025

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Genome sizes of grasses (Poaceae), chromosomal evolution, paleogenomics and the ancestral grass karyotype (AGK)

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Фев. 2, 2024

Abstract Grasses are one of the largest angiosperm families, widespread and economically important. They have therefore been subject early studies genome size as a fundamental biological trait any organism. Variation in has functional consequences is an essential parameter for understanding evolutionary patterns. In this study, we report nuclear sizes (2C values) 32 species subspecies from 27 genera Poaceae, including most its subfamilies, examined by flow cytometry. Genome were analyzed together with chromosome numbers to give information on monoploid sets base number x mean size. Monoploid genomes < 0.6 pg/1Cx chromosomes 0.1 pg presumably characteristic subfamilies Arundinoideae, Chloridoideae, Micrairoideae Oryzoideae. The larger 1Cx values (1.2–1.3 pg) evolutionarily diverging Anomochlooideae Pharoideae discussed context origin grasses pan-grass whole-genome duplication. data indicate that ancestral grass had size, which less than half previously assumed. available support concept karyotype (AGK) = 12. AGK seems conserved some (Bambusoideae, Oryzoideae, Pharoideae, parts Pooideae), while major rearrangements lineage-specific occurred after separation BOP PACMAD clades, i.e. when diversification their begun.

Язык: Английский

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A global blueberry phylogeny: Evolution, diversification, and biogeography of Vaccinieae (Ericaceae)

Molecular Phylogenetics and Evolution, Год журнала: 2024, Номер unknown, С. 108202 - 108202

Опубликована: Сен. 1, 2024

Язык: Английский

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Karyomorfologi dan Jumlah Kromosom Empat Grup Gyrinops versteegii (Gilg.) Domke. di Lombok

Jurnal Ilmu Kehutanan, Год журнала: 2017, Номер 11(2), С. 205 - 205

Опубликована: Июль 10, 2017

Lombok memiliki empat grup Gyrinops versteegii yang merupakan penghasil gaharu, yaitu Pantai, Buaya, Madu, dan Beringin. Penelitian ini bertujuan untuk mengkaji karyotipe jumlah kromosom G. bermanfaat dalam taksonomi program pemuliaan. Dalam penelitian pembuatan preparat ujung akar menggunakan metode squash. Hasil diperoleh dari adalah semua G.versteegii sama (n = 9) bentuk sama, berbentuk metasentrik pola (2n 18m). Ukuran setiap bervariasi, Pantai ukuran paling panjang 0,53 μm ketiga lain: Buaya (0,27 μm), Madu (0,21 Beringin (0,18 μm).Kata kunci: gaharu; versteegii; karyotipe; kromosom; Karyomorphology and Chromosome Number of Four Groups (Gilg.) Domke. in LombokAbstractLombok has four groups i.e. group. Studies karyomorphology the number chromosomes could be very useful for taxonomy plant breeding. In this study, preparation used a root tip squash method. The results obtained from study: had similar chromosome 9), metacentric chromosomes. Therefore, karyotype formula was 2n 18m. Each group showed variation size: size 0.53 ìm which is longest than other three groups: (0.27 ìm), (0.21 (0.18 ìm).

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Chromosome numbers in Bolboschoenus (Cyperaceae) correspond to main morphotypes at a worldwide scale

Plant Systematics and Evolution, Год журнала: 2024, Номер 311(1)

Опубликована: Дек. 14, 2024

Язык: Английский

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