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Pairing affinities of the B- and G-genome chromosomes of polyploid wheats with those of Aegilops speltoides.
Genome. 2000 Oct; 43(5):814-9.G

Abstract

Chromosome pairing at metaphase I was studied in different interspecific hybrids involving Aegilops speltoides (SS) and polyploid wheats Triticum timopheevii (AtAtGG), T. turgidum (AABB), and T. aestivum (AABBDD) to study the relationships between the S, G, and B genomes. Individual chromosomes and their arms were identified by means of C-banding. Pairing between chromosomes of the G and S genomes in T. timopheevii x Ae. speltoides (AtGS) hybrids reached a frequency much higher than pairing between chromosomes of the B and S genomes in T. turgidum x Ae. speltoides (ABS) hybrids and T. aestivum x Ae. speltoides (ABDS) hybrids, and pairing between B- and G-genome chromosomes in T. turgidum x T. timopheevii (AAtBG) hybrids or T. aestivum x T. timopheevii (AAtBGD) hybrids. These results support a higher degree of closeness of the G and S genomes to each other than to the B genome. Such relationships are consistent with independent origins of tetraploid wheats T. turgidum and T. timopheevii and with a more recent formation of the timopheevi lineage.

Authors+Show Affiliations

Departamento de Genética, Facultad de Biología, Universidad Complutense, Madrid, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11081971

Citation

Rodríguez, S, et al. "Pairing Affinities of the B- and G-genome Chromosomes of Polyploid Wheats With Those of Aegilops Speltoides." Genome, vol. 43, no. 5, 2000, pp. 814-9.
Rodríguez S, Maestra B, Perera E, et al. Pairing affinities of the B- and G-genome chromosomes of polyploid wheats with those of Aegilops speltoides. Genome. 2000;43(5):814-9.
Rodríguez, S., Maestra, B., Perera, E., Díez, M., & Naranjo, T. (2000). Pairing affinities of the B- and G-genome chromosomes of polyploid wheats with those of Aegilops speltoides. Genome, 43(5), 814-9.
Rodríguez S, et al. Pairing Affinities of the B- and G-genome Chromosomes of Polyploid Wheats With Those of Aegilops Speltoides. Genome. 2000;43(5):814-9. PubMed PMID: 11081971.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Pairing affinities of the B- and G-genome chromosomes of polyploid wheats with those of Aegilops speltoides. AU - Rodríguez,S, AU - Maestra,B, AU - Perera,E, AU - Díez,M, AU - Naranjo,T, PY - 2000/11/18/pubmed PY - 2001/3/7/medline PY - 2000/11/18/entrez SP - 814 EP - 9 JF - Genome JO - Genome VL - 43 IS - 5 N2 - Chromosome pairing at metaphase I was studied in different interspecific hybrids involving Aegilops speltoides (SS) and polyploid wheats Triticum timopheevii (AtAtGG), T. turgidum (AABB), and T. aestivum (AABBDD) to study the relationships between the S, G, and B genomes. Individual chromosomes and their arms were identified by means of C-banding. Pairing between chromosomes of the G and S genomes in T. timopheevii x Ae. speltoides (AtGS) hybrids reached a frequency much higher than pairing between chromosomes of the B and S genomes in T. turgidum x Ae. speltoides (ABS) hybrids and T. aestivum x Ae. speltoides (ABDS) hybrids, and pairing between B- and G-genome chromosomes in T. turgidum x T. timopheevii (AAtBG) hybrids or T. aestivum x T. timopheevii (AAtBGD) hybrids. These results support a higher degree of closeness of the G and S genomes to each other than to the B genome. Such relationships are consistent with independent origins of tetraploid wheats T. turgidum and T. timopheevii and with a more recent formation of the timopheevi lineage. SN - 0831-2796 UR - https://www.unboundmedicine.com/medline/citation/11081971/Pairing_affinities_of_the_B__and_G_genome_chromosomes_of_polyploid_wheats_with_those_of_Aegilops_speltoides_ L2 - https://cdnsciencepub.com/doi/10.1139/g00-055?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -