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Konovalov AA, Shundrina IK, Karpova EV, Goncharov NP, Kondratenko EY. Chromosomal localization of aromatic alcohol dehydrogenase fast-migrating isoenzyme Aadh1F (CAD1-F) gene in Triticum aestivum L. bread wheat. RUSS J GENET+ 2016. [DOI: 10.1134/s1022795416080056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Konovalov AA, Shundrina IK, Karpova EV, Nefedov AA, Goncharov NP. Inheritance and phenotype expression of functional and null alleles of aromatic alcohol dehydrogenase (CAD) in diploid wheats. RUSS J GENET+ 2014. [DOI: 10.1134/s1022795414110052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Randhawa HS, Singh J, Lemaux PG, Gill KS. Mapping barleyDsinsertions using wheat deletion lines reveals high insertion frequencies in gene-rich regions with high to moderate recombination rates. Genome 2009; 52:566-75. [DOI: 10.1139/g09-029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Gene distribution is highly uneven in the large genomes of barley and wheat; however, location, order, and gene density of gene-containing regions are very similar between the two genomes. Flanking sequences from 35 unique, single-copy, barley Ds insertion events were physically mapped using wheat nullisomic-tetrasomic, ditelosomic, and deletion lines. Of the 35 sequences, 23 (66%) detected 34 loci mapping on all 7 homoeologous wheat groups. Seven sequences were not mapped owing to lack of polymorphism and the remaining 5 (14%) were barley-specific. All 34 loci physically mapped to the previously identified gene-rich regions (GRRs) of wheat, making the contained genes candidates for targeted mutagenesis by remobilization. Transpositions occurred preferentially into GRRs with higher recombination rates. The GRRs containing 17 of the 23 Ds insertions accounted for 60%–89% of the respective arm’s recombination. The remaining 6 (17%) insertions mapped to GRRs with <15% of the arm’s recombination. Overall, kb/cM estimates for the Ds-containing GRRs were twofold higher than those for regions without insertions. These results suggest that all genes may be targeted by transposon-based gene cloning, although the transposition frequency for genes present in recombination-poor regions is significantly less than that present in highly recombinogenic regions.
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Affiliation(s)
- Harpinder S. Randhawa
- Department of Crop and Soil Sciences, 277 Johnson Hall, P.O. Box 646420, Washington State University, Pullman, WA 99164-6420, USA
- Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA
| | - Jaswinder Singh
- Department of Crop and Soil Sciences, 277 Johnson Hall, P.O. Box 646420, Washington State University, Pullman, WA 99164-6420, USA
- Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA
| | - Peggy G. Lemaux
- Department of Crop and Soil Sciences, 277 Johnson Hall, P.O. Box 646420, Washington State University, Pullman, WA 99164-6420, USA
- Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA
| | - Kulvinder S. Gill
- Department of Crop and Soil Sciences, 277 Johnson Hall, P.O. Box 646420, Washington State University, Pullman, WA 99164-6420, USA
- Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9, Canada
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720-3102, USA
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Mickelson-Young L, Endo TR, Gill BS. A cytogenetic ladder-map of the wheat homoeologous group-4 chromosomes. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1995; 90:1007-11. [PMID: 24173055 DOI: 10.1007/bf00222914] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/1994] [Accepted: 11/22/1994] [Indexed: 05/05/2023]
Abstract
We report the results of chromosome maps of wheat homoeologous chromosomes 4A, 4B, and 4D using 40 RFLP markers and 39 homozygous deletion lines. Deletion breakpoints divide the chromosomes into 45 subarm intervals with 32 intervals distinguished by molecular markers. The chromosome maps confirm the homoeology of arms 4AS to 4BL and 4DL, and 4AL to 4BS and 4DS. The chromosome map of 4A reveals novel information concerning the 4AL-5AL-7BS cyclical translocation. The presence of homoeologous group-4 long-arm markers, Xksu G10 and Xpsr 1051, intervening between the translocated 5AL and 7BS chromosome segments in 4AL suggests that the translocation events are more complex than was earlier believed. Chromosome maps confirm a pericentric inversion in Chinese Spring chromosome 4B. The consensus chromosome map is compared to the genetic map of wheat to construct a cytogenetic ladder-map (CLM). The CLM reveals an unequal distribution of recombination along the length of the chromosome arms. Recombination is highest in the distal half, and low in the proximal half, of the chromosome arms.
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Affiliation(s)
- L Mickelson-Young
- Department of Plant Pathology, Throckmorton Hall, Kansas State University, 66506-5502, Manhattan, KS, USA
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Naranjo T. Chromosome structure of durum wheat. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 1990; 79:397-400. [PMID: 24226360 DOI: 10.1007/bf01186085] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/1989] [Accepted: 11/02/1989] [Indexed: 06/02/2023]
Abstract
Meiotic pairing was analyzed at metaphase I in ABRR triticale × rye hybrids to identify the arm homoeology of chromosomes ofTriticum turgidum. Wheat chromosomes were identified using a C-banding technique. Results confirmed that the homoeologous relationships between chromosome arms of the A and B genomes inT. turgidum are the same as inT. aestivum, and that a double translocation involving4AL,5AL, and7BS is present inT. turgidum. It is proposed that a pericentric inversion involving a substantial portion of chromosome4A is present inT. turgidum andT. aestivum.
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Affiliation(s)
- T Naranjo
- Departamento de Biologia Funcional, Universidad de Oviedo, E-33071, Oviedo, Spain
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