title: No 5-B compensation by rye B-chromosomes.
abstract: Chinese Spring mono-5B wheat was crossed with rye plants, with and without B-chromosomes, to produce polyhaploids with and without 5B and with and without rye B-chromosomes. As expected, absence of 5B resulted in a strong increase of homoeologous pairing. It was accompanied by a decrease in chiasmata in the rye B-chromosomes. The rye B-chromosomes were entirely ineffective in compensating for the 5B effect in nulli 5B, 2 rye B types.
authors.affiliation: Department of Genetics, Agricultural University, Wageningen, The Netherlands.
authors.forename: M
authors.initials: M
authors.lastname: Roothaan
authors.forename: J
authors.initials: J
authors.lastname: Sybenga