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Titolo:
A CEREAL CYST-NEMATODE (HETERODERA-AVENAE WOLL.) RESISTANCE GENE TRANSFERRED FROM AEGILOPS TRIUNCIALIS TO HEXAPLOID WHEAT
Autore:
ROMERO MD; MONTES MJ; SIN E; LOPEZBRANA I; DUCE A; MARTINSANCHEZ JA; ANDRES MF; DELIBES A;
Indirizzi:
UNIV POLITECN MADRID,ETS INGN AGRONOMOS,DEPT BIOTECNOL E-28040 MADRIDSPAIN UNIV POLITECN MADRID,ETS INGN AGRONOMOS,DEPT BIOTECNOL E-28040 MADRIDSPAIN CSIC,CTR CIENCIAS MEDIOAMBIENTALES E-28006 MADRID SPAIN UDL,IRTA,CTR R&D LLEIDA E-25006 LLEIDA SPAIN
Titolo Testata:
Theoretical and Applied Genetics
fascicolo: 8, volume: 96, anno: 1998,
pagine: 1135 - 1140
SICI:
0040-5752(1998)96:8<1135:ACC(WR>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
WILD GRASS; VENTRICOSA; CHROMOSOME; PATHOTYPES; GENOME;
Keywords:
AEGILOPS TRIUNCIALIS; TRITICUM AESTIVUM; HETERODERA AVENAE; CEREAL CYST NEMATODE; RESISTANCE GENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
M.D. Romero et al., "A CEREAL CYST-NEMATODE (HETERODERA-AVENAE WOLL.) RESISTANCE GENE TRANSFERRED FROM AEGILOPS TRIUNCIALIS TO HEXAPLOID WHEAT", Theoretical and Applied Genetics, 96(8), 1998, pp. 1135-1140

Abstract

The cereal cyst nematode (Heterodera avenae) is an important root parasite of common wheat. A high level of resistance was transferred to wheat from Aegilops triuncialis (TR lines) using the cross [(T. turgidum x Ae. triuncialis)x T. aestivum]. Low fertility (3-5 viable kernels per plant) was observed during the process but the surviving hybrid plants were highly vigorous. To obtain stable resistant lines further crosses to T. aestivum were performed. The resistance in TR lines seems to be transferred from the C genome of Ae. triuncialis (genomes CCUU). Ae. triuncialis was highly resistant to the two Spanish populations of H. avenae tested, as well as to four French races and two Swedish populations. The histological analysis showed a hyper-sensitive reactionin the roots of a resistant TR line inoculated with the Ha71 pathotype of H. avenae, whereas well-formed syncytia were observed in the roots of the susceptible control. Resistance to the H. avenae Ha71 pathotype seemed to be inherited as determined by a single dominant factor inthe crosses between resistant TR lines and susceptible cultivars.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 14:59:31