Structural differentiation of chromosomes between Triticum dicoccoides Koern. and T. araraticum Jakubz., showing high meiotic pairing homology.

Noda, Kazuhiko; Ge, Koulin

doi:10.1266/jjg.64.191

Cited by 8 publications

(4 citation statements)

References 17 publications

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“…speltoides was the maternal parent of T. araraticum (Tsunewaki 1996 ). Hybrids T. araraticum × T. dicoccoides were reported as sterile because of meiotic disturbances and gene interactions (Makushina 1938 ; Svetozarova 1939 ; Tanaka and Ishii 1973 ; Wagenaar 1961 ), although a few authors (Noda and Ge 1989 ; Sachs 1953 ; Tanaka and Ichikawa 1972 ; Tanaka and Kawahara 1976 ) reported relatively good chromosome pairing in the F 1 hybrids in some T. araraticum × T. dicoccoides combinations.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity, distribution and domestication history of the neglected GGAtAt genepool of wheat

et al. 2021

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Key message We present a comprehensive survey of cytogenetic and genomic diversity of the GGAtAt genepool of wheat, thereby unlocking these plant genetic resources for wheat improvement. Abstract Wheat yields are stagnating around the world and new sources of genes for resistance or tolerances to abiotic traits are required. In this context, the tetraploid wheat wild relatives are among the key candidates for wheat improvement. Despite its potential huge value for wheat breeding, the tetraploid GGAtAt genepool is largely neglected. Understanding the population structure, native distribution range, intraspecific variation of the entire tetraploid GGAtAt genepool and its domestication history would further its use for wheat improvement. The paper provides the first comprehensive survey of genomic and cytogenetic diversity sampling the full breadth and depth of the tetraploid GGAtAt genepool. According to the results obtained, the extant GGAtAt genepool consists of three distinct lineages. We provide detailed insights into the cytogenetic composition of GGAtAt wheats, revealed group- and population-specific markers and show that chromosomal rearrangements play an important role in intraspecific diversity of T. araraticum. The origin and domestication history of the GGAtAt lineages is discussed in the context of state-of-the-art archaeobotanical finds. We shed new light on the complex evolutionary history of the GGAtAt wheat genepool and provide the basis for an increased use of the GGAtAt wheat genepool for wheat improvement. The findings have implications for our understanding of the origins of agriculture in southwest Asia.

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Section: Introductionmentioning

confidence: 99%

Genetic diversity, distribution and domestication history of the neglected GGAtAt genepool of wheat

et al. 2021

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“…The authors however postulate a common A genome-like ancestor for diploid and polyploid species: It is supposed, that the tetraploid timopheevi-and emmer-group originated, together with the hexaploid T. aestivum L. em. NODA and GE (1989) dealt with phylogenetical problems of the emmer-and timopheevigroup in the tetraploid wheats, their hybrids being characterized by a low level of meiotic chromosome pairing. RAYBURN and GILL (1988) compared the patterns of a special highly repeated DNA sequence of tetraploid T. durum group (B genome), T. timopheevi group (G genome) and hexaploid wheats by in situ hybridization.…”

Section: Sorghum Moenchmentioning

confidence: 99%

Taxonomy and evolution of cultivated plants: Literature review 1989/1990

Hanelt¹,

Fritsch²,

Hammer³

et al. 1992

Feddes Repert

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Taxonomy and evolution of cultivated plants : Literature review 1989Literature review /1990 S u m m a r y Z u s a m m e n f a s s u n g Important papers on taxonomy and evolution of cultivated plants and relatives published in 1989 and 1990 have been compiled and shortly reviewed. Wichtige Arbeiten zur Taxonomie und Evolution vonKulturPflanzen und Verwandten ausden Jahren 1989 und 1990 wurden zusammengestellt und kurz kommentiert.

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“…et MIGUSH. NODA and GE (1989) dealt with phylogenetical problems of the emmer-and timopheevigroup in the tetraploid wheats, their hybrids being characterized by a low level of meiotic chromosome pairing. Some exceptional lines with a ,high pairing level in hybrids had been regarded by former authors as intermediates between the groups, NODA and GE however could not confirm this assumption by application of the N-banding technique.…”

Section: Sorghum Moenchmentioning

confidence: 99%