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Titolo:
Trigenomic origin of the hexaploid Psammopyrum athericum (Triticeae : Poaceae) revealed by in-situ hybridization
Autore:
Ellneskog-Staam, P; Salomon, B; von Bothmer, R; Anamthawat-Jonsson, K;
Indirizzi:
Swedish Univ Agr Sci, Dept Crop Sci, SE-23053 Alnarp, Sweden Swedish Univ Agr Sci Alnarp Sweden SE-23053 Sci, SE-23053 Alnarp, Sweden Univ Iceland, Dept Biol, IS-108 Reykjavik, Iceland Univ Iceland Reykjavik Iceland IS-108 pt Biol, IS-108 Reykjavik, Iceland
Titolo Testata:
CHROMOSOME RESEARCH
fascicolo: 3, volume: 9, anno: 2001,
pagine: 243 - 249
SICI:
0967-3849(200104)9:3<243:TOOTHP>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
DNA-SEQUENCES; GENOME; WHEAT; THINOPYRUM; CONSTITUTIONS; KARYOTYPE; GRAMINEAE; PROBES; BARLEY;
Keywords:
E genome; in-situ hybridization; L genome; Psammopyrum;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Ellneskog-Staam, P Swedish Univ Agr Sci, Dept Crop Sci, Box 44, SE-23053 Alnarp, Sweden Swedish Univ Agr Sci Box 44 Alnarp Sweden SE-23053 den
Citazione:
P. Ellneskog-Staam et al., "Trigenomic origin of the hexaploid Psammopyrum athericum (Triticeae : Poaceae) revealed by in-situ hybridization", CHROMOS RES, 9(3), 2001, pp. 243-249

Abstract

The genomic constitution of the hexaploid Psammopyrum athericum was studied with in-situ DNA hybridization using both genomic DNA and isolated clonedsequences as probes. A genomic probe from Thinopyrum bessarabicum (E genome) hybridized successfully to 14 chromosomes of Ps. athericum and a probe from Festucopsis serpentinii (L genome) hybridized to another 14 chromosomes. The remaining chromosomes did not hybridize, apart from in the centromeric region, to any of the genomic probes used. It is thus proposed that Ps. athericum contains the genomes E, L and X where X stands for a so-far unknown genome. Psammopyrum athericum has three pairs of pTa71 sites and approximately 30 pSc119:2 sites. The origin of the third genome will be a matter for further research using genomic and genome-specific probes.

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Documento generato il 12/07/20 alle ore 09:42:47