Development and characterization of a compensating wheat-Thinopyrum intermedium Robertsonian translocation with Sr44 resistance to stem rust (Ug99)

Liu, Wenxuan; Danilova, Tatiana; Rouse, Matthew N.; Bowden, Robert L.; Friebe, Bernd; Gill, Bikram S.; Pumphrey, Michael O.

doi:10.1007/s00122-013-2044-6

Cited by 56 publications

(35 citation statements)

References 43 publications

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“…As known, T. ponticum and T. intermedium were 2 important polyploid species for wheat improvement [Kim et al, 1993;Friebe et al, 1996;Liu et al, 2013]. However, how these species were evolved is still being investigated.…”

Section: Discussionmentioning

confidence: 99%

“…Barkworth & D.R. Dewey, were known to have many useful agronomical traits for wheat improvement, such as resistance to rust, wheat streak mosaic virus, barley yellow dwarf virus, and Fusarium head blight as well as high-molecular-weight glutenin subunits, which have been transferred to wheat via chromosome addition, substitution or translocation lines [Wang and Liang, 1977;Friebe et al, 1996;Sharma et al, 1997;Zhang et al, 2001;Shen et al, 2004;Liu et al, 2008;Garg et al, 2009;Zhang et al, 2011;Liu et al, 2013]. …”

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confidence: 99%

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Molecular and Cytological Comparisons of Chromosomes 7el1, 7el2, 7Ee, and 7Ei Derived from Thinopyrum

Guo

Cai

et al. 2015

Cytogenet Genome Res

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Thinopyrum chromosomes 7el₁, 7el₂, 7E^e, and 7Eⁱ, homoeologous to group 7 chromosomes of common wheat (Triticum aestivum), were determined to have many useful agronomical traits for wheat improvement. To analyze the genetic relationships among the 4 Thinopyrum 7E chromosomes, the conserved orthologous set markers, genomic in situ hybridization (GISH), and meiotic chromosome pairing were used in this study. The unweighted pair-group method with arithmetical averages (UPGMA) analysis indicated that 7el₁, derived from T. ponticum, and 7Eⁱ, derived from T. intermedium, were the most closely related. 7el₂, derived from T. ponticum, was relatively distant from the 7el₁-7Eⁱ complex. While 7E^e, derived from T. elongatum, was more distantly related to 7el₁, 7el₂, and 7Eⁱ. This is the first report showing that 7el₁ and 7Eⁱ may be similar, which could be explained by the similar chromosome signal distribution revealed by GISH as well as UPGMA analysis revealed by both molecular markers and the highest frequency of meiotic pairing. The newly developed genome-specific molecular markers may be useful for marker-assisted selection of Lr19, Bdv3, and Fhblop.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Molecular and Cytological Comparisons of Chromosomes 7el1, 7el2, 7Ee, and 7Ei Derived from Thinopyrum

Guo

Cai

et al. 2015

Cytogenet Genome Res

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“…Chromosomes of Dasypyrum villosum (L.) Candargy and Thinopyrum intermedium (Host) Barkworth and D.R. Dewey, broken at the centromere, formed dicentrics consisting of an alien arm attached to the distal end of an untargeted wheat chromosome [Liu C et al, 2011;Liu W et al, 2011Liu W et al, , 2013. Secondary rearranged dicentrics and multicentrics ( Fig.…”

Section: Discussionmentioning

confidence: 99%

Chromosome Rearrangements Caused by Double Monosomy in Wheat-Barley Group-7 Substitution Lines

Danilova¹,

Friebe²,

Gill³

et al. 2018

Cytogenet Genome Res

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Interspecific or introgressive hybridization is one of the driving forces in plant speciation, producing allopolyploids or diploids with rearranged genomes. The process of karyotype reshaping following homoploid interspecific hybridization has not been studied experimentally. Interspecific hybridization is widely used in plant breeding to increase genetic diversity and introgress new traits. Numerous introgression stocks were developed for hexaploid wheat Triticum aestivum L. (2n = 6x = 42, genome AABBDD). Double monosomic lines, containing one alien chromosome from the tertiary gene pool of wheat and one homoeologous wheat chromosome, represent a simplified model for studying chromosome rearrangements caused by interspecific hybridization. The pairing of a chromosome from the tertiary gene pool with a wheat homoeologue is restricted by the activity of the wheat Ph1 gene, thus, rearrangements caused by chromosome breakage followed by the fusion of the broken arms can be expected. We analyzed chromosome aberrations in 4 sets of lines that originated from double monosomics of barley (Hordeum vulgare L.) chromosome 7H and wheat group-7 chromosomes with dicentric or ring chromosomes. The dynamics of wheat-barley dicentric chromosomes during plant development was followed and an increased diversity of rearrangements was observed. Besides the targeted group-7 chromosomes, other wheat chromosomes were involved in rearrangements, as chromosomes broken in the centromeric region fused with other broken chromosomes. In some cells, multi-centric chromosomes were observed. The structure and dosage of the introgressed barley chromatin was changed. The transmission of the rearrangements to the progenies was analyzed. The observed aberrations emphasize the importance of cytogenetic screening in gene introgression projects.

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“…За последние 30 лет были разработаны новые биотехнологические подходы, молеку лярногенетические и цитологические методы анализа ге номов, которые стали хорошим методическим арсеналом для повышения эффективности традиционной селекции. В литературе существует достаточное число примеров получения транслокационных линий с использованием современных методических подходов (Chen et al, 2005;Liu et al, 2013;Li et al, 2016а). Линии с небольшими фрагментами хроматина характеризуются цитологической стабильностью, более высокой фертильностью и могут быть использованы на следующих этапах селекции для создания пребридинговых форм.…”

Section: перспективы использования чужеродных генов для создания устоunclassified

“…При таких скре щиваниях наблюдается рекомбинация по гомологичным участкам хромосом, в результате чего размер чужеродного фрагмента может существенно сократиться. В случаях, когда используются виды из третичного генофонда, у ко торых геномы не гомологичны геномам мягкой пшеницы (Thinopyrum ssp., Secale, Elymus), происходит перенос целых хромосом, хромосомных плеч и в редких случаях терминальные транслокации (Liu et al, 2013;Silkova et al, 2017). Прямая гибридизация мягкой пшеницы с пред ставителями третичного генофонда малоэффективна для интрогрессии целевых генов, при этом гибриды первого поколения отличаются цитологической нестабильностью и стерильностью.…”

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INLUENCE OF ALIEN GENETIC MATERIAL ON THE MANIFESTATION OF AGRONOMICALLY IMPORTANT TRAITS OF COMMON WHEAT (T. aestivum L.)

Леонова¹

2018

Vestn. VOGiS

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Development and characterization of a compensating wheat-Thinopyrum intermedium Robertsonian translocation with Sr44 resistance to stem rust (Ug99)

Cited by 56 publications

References 43 publications

Molecular and Cytological Comparisons of Chromosomes 7el<sub>1</sub>, 7el<sub>2</sub>, 7E<sup>e</sup>, and 7E<sup>i</sup> Derived from <b><i>Thinopyrum</i></b>

Molecular and Cytological Comparisons of Chromosomes 7el<sub>1</sub>, 7el<sub>2</sub>, 7E<sup>e</sup>, and 7E<sup>i</sup> Derived from <b><i>Thinopyrum</i></b>

Chromosome Rearrangements Caused by Double Monosomy in Wheat-Barley Group-7 Substitution Lines

INLUENCE OF ALIEN GENETIC MATERIAL ON THE MANIFESTATION OF AGRONOMICALLY IMPORTANT TRAITS OF COMMON WHEAT (T. aestivum L.)

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