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Titolo:
Segregation distortion through female gametophytes in interspecific hybrids of tetraploid wheat as revealed by RAPD analysis
Autore:
Manabe, M; Ino, T; Kasaya, M; Takumi, S; Mori, N; Ohtsuka, I; Nakamura, C;
Indirizzi:
Kobe Univ, Grad Sch Sci & Technol, Fac Agr, Lab Plant Genet,Nada Ku, Kobe,Hyogo 6578501, Japan Kobe Univ Kobe Hyogo Japan 6578501 net,Nada Ku, Kobe,Hyogo 6578501, Japan Kobe Univ, Lab Plant Genet, Dept Biol & Environm Sci, Kobe, Hyogo, Japan Kobe Univ Kobe Hyogo Japan Dept Biol & Environm Sci, Kobe, Hyogo, Japan Kanagawa Univ, Fac Engn, Biol Lab, Yokohama, Kanagawa 221, Japan Kanagawa Univ Yokohama Kanagawa Japan 221 , Yokohama, Kanagawa 221, Japan
Titolo Testata:
HEREDITAS
fascicolo: 1, volume: 131, anno: 1999,
pagine: 47 - 53
SICI:
0018-0661(1999)131:1<47:SDTFGI>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHROMOSOME SUBSTITUTION LINES; ALLOPLASMIC COMMON WHEAT; DURUM-WHEAT; CYTOPLASMIC COMPATIBILITY; AGROPYRON CYTOPLASMS; GROUP-1 CHROMOSOMES; AEGILOPS-SQUARROSA; GENETIC DIVERSITY; MOLECULAR-BASIS; RFLP ANALYSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: Nakamura, C Kobe Univ, Grad Sch Sci & Technol, Fac Agr, Lab Plant Genet,Nada Ku, 1-1 Rokkodai Cho, Kobe, Hyogo 6578501, Japan Kobe Univ 1-1 Rokkodai Cho Kobe Hyogo Japan 6578501 501, Japan
Citazione:
M. Manabe et al., "Segregation distortion through female gametophytes in interspecific hybrids of tetraploid wheat as revealed by RAPD analysis", HEREDITAS, 131(1), 1999, pp. 47-53

Abstract

Interspecific crosses were made among five tetraploid wheat species including three endemic species in Transcaucasia to study chromosome marker segregation. A reciprocal cross between Triticum turgidum and T. timopheevi produced sterile F(1)s, while three reciprocal F(1)s obtained from cross combinations of T. durum/T. persicum, T. durum/T. paleocolchicum and T. turgidum/T. paleocolchicum were fertile and produced euploid F-2 progeny after self fertilization. Twenty RAPD markers were identified as nuclear markers specific to one or two species by determining the genotypes of the three fertilereciprocal F(1)s, and six were assigned to individual chromosomes using the D genome chromosome substitution lines. Segregation analysis in the F(2)sshowed that five among the 20 nuclear markers were almost completely or preferentially transmitted from single parents. A complete transmission through the female gametes of one T. durum marker on chromosome 3A was shown by the analysis of BC1 progeny from the cross combination of T. durum/T. persicum. This complete segregation distortion through the female gametes was correlated with markedly reduced selfed seed set in the F(1)s. Preferential transmission of a T. paleocolchicum marker associated with the cytoplasm wasalso detected in a cross of T. paleocolchicum x T. turgidum.

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Documento generato il 03/12/20 alle ore 16:01:32