Development of synthetic amphiploids based on Triticum turgidum × T. Monococcum crosses to improve the adaptability of cereals

M. Megyeri, P. Mikó, I. Molnár, G. Kovács

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Cultivated einkorn (Triticum monococcum L. ssp. monococcum) is an excellent source of resistance against several wheat diseases and quality parameters. Semi-dwarf einkorn lines with good crossability were identified in order to produce Triticum turgidum × T. monococcum synthetic amphiploids. Two combinations were used to develop the amphiploids: durum × einkorn and emmer × einkorn.After the genome duplication of F1 seeds, highly fertile amphiploids were developed. The AuBAm genome structure of the progenies was confirmed by genomic in situ hybridization (GISH).Lines derived from durum × einkorn and emmer × einkorn crosses were studied for agronomic performance, disease resistance and genetic variability. Both amphiploid combinations showed excellent resistance against certain wheat diseases (leaf rust, powdery mildew), but not against fusarium. The durum-based synthetic amphiploid lines showed a higher level of phenotypic diversity. The newly produced T. turgidum × T. monococcum synthetic hexaploids are promising genetic resources for wheat breeding. Selected durum × einkorn lines are currently used in bread wheat improvement to transfer the useful properties of einkorn into cultivated hexaploid wheat via 'bridge-crossing'.

Original languageEnglish
Pages (from-to)267-274
Number of pages8
JournalActa Agronomica Hungarica
Volume59
Issue number3
DOIs
Publication statusPublished - Sep 1 2011

Fingerprint

Triticum monococcum subsp. monococcum
Triticum monococcum
Triticum turgidum
durum wheat
wheat
Triticum turgidum subsp. dicoccon
hexaploidy
synthetic populations
genome
leaf rust
powdery mildew
genetic resources
agronomic traits
in situ hybridization
Fusarium
disease resistance
genomics
genetic variation

Keywords

  • crossability
  • interspecific hybridization
  • synthetic amphiploid
  • Triticum monococcum L. ssp. monococcum
  • Triticum turgidum L.

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Development of synthetic amphiploids based on Triticum turgidum × T. Monococcum crosses to improve the adaptability of cereals. / Megyeri, M.; Mikó, P.; Molnár, I.; Kovács, G.

In: Acta Agronomica Hungarica, Vol. 59, No. 3, 01.09.2011, p. 267-274.

Research output: Contribution to journalArticle

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