Cytogenic stability of wheat lines [Triticum aestivum L.] with added and substituted chromosomes of rye [Secale cereale L.]

• Autorzy: Chrzastek M.
• Języki publikacji: EN

Abstrakty

EN

Transmission of added and substituted rye chromosomes through generations and behavior of chromosomes at meiosis was analyzed. Among the addition lines, chromosome 7R was most often transmitted and 6R most rarely. In substitution line 1B/1R, no elimination of rye chromosomes was observed in any generation. The tested lines differed from wheat in the behavior of chromosomes at meiosis. The rye and wheat chromosomes interacted during meiosis. The added rye chromosomes influenced bivalent shape and univalent frequency at metaphase I, the number of delayed chromosomes and chromatid bridges at anaphase I, and the occurrence of micronuclei in tetrads. In the majority of lines the frequency of open bivalents and univalents was higher than in ‘Grana’ wheat and ‘Dańkowskie Złote’ rye. Rye chromosomes occurred more frequently as univalents than wheat chromosomes did. Neither multivalent associations nor homoeologous pairing were observed. The studied lines had good cytogenetic stability.

Słowa kluczowe

EN

wheat line; chromosome; rye; wheat; Secale cereale; mitosis; cytogenetic stability; Triticum aestivum; addition line; meiosis; substitution line

• Wydawca: -
• Czasopismo: Acta Biologica Cracoviensia. Series Botanica
• Rocznik: 2003
• Tom: 45
• Numer: 2
• Opis fizyczny: p.117-126,fig.

Twórcy

autor

Chrzastek M.

• Agricultural University, Akademicka 15, 20-934 Lublin, Poland

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