A synthetic wheat with 56 chromosomes derived from Triticum turgidum and Aegilops tauschii

• Authors: L. Zhang , D. Liu , X. Lan , Y. Zheng , Z. Yan
• Languages of publication: EN

Abstracts

EN

By colchicine treatment of hybrids between Triticum turgidum and Aegilops tauschii (as seedlings), a fertile wheat plant (SHW-L2) carrying 56 chromosomes was artificially synthesized. At metaphase I of 50 pollen mother cells, the 56 chromosomes of the new wheat SHW-L2 showed a mean pairing configuration of 2.82 univalents, 6.18 rod bivalents, 19.39 ring bivalents, 0.5 trivalents, and 0.14 quadrivalents. Cytological analyses suggested that SHW-L2 had additional 7 pairs of chromosomes from the A and D genome besides the 42 chromosomes of common wheat. The special chromosome constitution of SHW-L2 may be derived from the chromosome doubling by the colchicine treatment of seedlings and then spontaneous doubling of gametes.

Keywords

EN

AEGILOPS TAUSCHII; CHROMOSOME; OCTOPLOID; TRITICUM TURGIDUM; WHEAT

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2008
• Volume: 49
• Issue: 1
• Pages: 41-44

Contributors

author

L. Zhang

author

D. Liu

author

X. Lan

author

Y. Zheng

author

Z. Yan

• Document Type: ARTICLE
• Publication order reference: D. Liu, Key Laboratory of Crop Genetic Resources and Improvement, Ministry of Education, Sichuan Agricultural University, Yaan 625014, Sichuan, China