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Relationship between pairing frequencies and genome affinity estimations in Aegilops ovata × Triticum aestivum hybrid plants.
Heredity (Edinb). 1992 Feb; 68(2):165-172.H

Abstract

Meiotic associations at metaphase I have been analysed in Aegilops ovata × Triticum aestivum hybrid plants (genome constitution ABDUM) with low and high homoeologous pairing by using C-banding. Five different types of meiotic associations involving Aegilops and wheat genomes were identified. Pairing affinities between Aegilops and wheat genomes have been analysed from meiotic associations at metaphase I in low and high homoeologous pairing hybrid plants as well as from different meiotic configurations (bivalents and multivalents) in those hybrids with a high pairing mutant (phlb). Those kinds of distinguishable associations revealed the same relative order: AD-UM > A-D > U-M > AD-B > UM-B in both low and high homoeologous pairing hybrids. The mean number of associations per total associations (relative contribution) for the different distinguishable types of pairing was well maintained among hybrids with different levels of pairing (low and high) as well as in different meiotic configurations (bivalents and multivalents) in the high pairing plants. These results seem to indicate that the affinities expressed between the genomes that are in competition for pairing are independent of the meiotic configurations considered and on the level of pairing analysed.

Authors+Show Affiliations

Departamento de Genética, ETSI Agrónomos, Universidad Politécnica de Madrid, 28040 Madrid, Spain.Departamento de Genética, ETSI Agrónomos, Universidad Politécnica de Madrid, 28040 Madrid, Spain.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29231212

Citation

Fernandez-Calvin, Begoña, and Juan Orellana. "Relationship Between Pairing Frequencies and Genome Affinity Estimations in Aegilops Ovata × Triticum Aestivum Hybrid Plants." Heredity, vol. 68, no. 2, 1992, pp. 165-172.
Fernandez-Calvin B, Orellana J. Relationship between pairing frequencies and genome affinity estimations in Aegilops ovata × Triticum aestivum hybrid plants. Heredity (Edinb). 1992;68(2):165-172.
Fernandez-Calvin, B., & Orellana, J. (1992). Relationship between pairing frequencies and genome affinity estimations in Aegilops ovata × Triticum aestivum hybrid plants. Heredity, 68(2), 165-172. https://doi.org/10.1038/hdy.1992.25
Fernandez-Calvin B, Orellana J. Relationship Between Pairing Frequencies and Genome Affinity Estimations in Aegilops Ovata × Triticum Aestivum Hybrid Plants. Heredity (Edinb). 1992;68(2):165-172. PubMed PMID: 29231212.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationship between pairing frequencies and genome affinity estimations in Aegilops ovata × Triticum aestivum hybrid plants. AU - Fernandez-Calvin,Begoña, AU - Orellana,Juan, PY - 1991/03/08/received PY - 2017/12/13/entrez PY - 1992/2/1/pubmed PY - 1992/2/1/medline SP - 165 EP - 172 JF - Heredity JO - Heredity (Edinb) VL - 68 IS - 2 N2 - Meiotic associations at metaphase I have been analysed in Aegilops ovata × Triticum aestivum hybrid plants (genome constitution ABDUM) with low and high homoeologous pairing by using C-banding. Five different types of meiotic associations involving Aegilops and wheat genomes were identified. Pairing affinities between Aegilops and wheat genomes have been analysed from meiotic associations at metaphase I in low and high homoeologous pairing hybrid plants as well as from different meiotic configurations (bivalents and multivalents) in those hybrids with a high pairing mutant (phlb). Those kinds of distinguishable associations revealed the same relative order: AD-UM > A-D > U-M > AD-B > UM-B in both low and high homoeologous pairing hybrids. The mean number of associations per total associations (relative contribution) for the different distinguishable types of pairing was well maintained among hybrids with different levels of pairing (low and high) as well as in different meiotic configurations (bivalents and multivalents) in the high pairing plants. These results seem to indicate that the affinities expressed between the genomes that are in competition for pairing are independent of the meiotic configurations considered and on the level of pairing analysed. SN - 1365-2540 UR - https://www.unboundmedicine.com/medline/citation/29231212/Relationship_between_pairing_frequencies_and_genome_affinity_estimations_in_Aegilops_ovata_×_Triticum_aestivum_hybrid_plants_ DB - PRIME DP - Unbound Medicine ER -
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