Repeated polyploidy drove different levels of crossover suppression between homoeologous chromosomes in Brassica napus allohaploids.

The Plant Cell
Marta CifuentesEric Jenczewski

Abstract

Allopolyploid species contain more than two sets of related chromosomes (homoeologs) that must be sorted during meiosis to ensure fertility. As polyploid species usually have multiple origins, one intriguing, yet largely underexplored, question is whether different mechanisms suppressing crossovers between homoeologs may coexist within the same polyphyletic species. We addressed this question using Brassica napus, a young polyphyletic allopolyploid species. We first analyzed the meiotic behavior of 363 allohaploids produced from 29 accessions, which represent a large part of B. napus genetic diversity. Two main clear-cut meiotic phenotypes were observed, encompassing a twofold difference in the number of univalents at metaphase I. We then sequenced two chloroplast intergenic regions to gain insight into the maternal origins of the same 29 accessions; only two plastid haplotypes were found, and these correlated with the dichotomy of meiotic phenotypes. Finally, we analyzed genetic diversity at the PrBn locus, which was shown to determine meiotic behavior in a segregating population of B. napus allohaploids. We observed that segregation of two alleles at PrBn could adequately explain a large part of the variation in meiotic behav...Continue Reading

References

Jan 1, 1976·Annual Review of Genetics·E R Sears
Jun 1, 1966·Proceedings of the National Academy of Sciences of the United States of America·M Feldman
Aug 11, 1999·Trends in Ecology & Evolution·D E Soltis, P S Soltis
Jan 5, 2002·Genome Génome / Conseil National De Recherches Canada·H Ozkan, M Feldman
Jul 2, 2003·Genome Génome / Conseil National De Recherches Canada·A G Sharpe, D J Lydiate
Jul 9, 2004·Genetics·Katherine S CaldwellWayne Powell
Nov 18, 2004·The Plant Journal : for Cell and Molecular Biology·Debashis RanaIan Bancroft
Sep 28, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·J PiquemalP Blanchard
May 4, 2006·Annual Review of Plant Biology·Olivier HamantW Zacheus Cande
Sep 9, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R DelourmeM Renard
Jan 9, 2007·Trends in Genetics : TIG·Christine MézardRaphaël Mercier
Mar 7, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M HasanR J Snowdon
Mar 22, 2008·Genome Génome / Conseil National De Recherches Canada·S ChenW A Cowling
Mar 22, 2008·Genome Génome / Conseil National De Recherches Canada·Keita SuwabeIan Bancroft
Aug 1, 1997·Genome Génome / Conseil National De Recherches Canada·I A Parkin, D J Lydiate
Dec 1, 1995·Genome Génome / Conseil National De Recherches Canada·A G SharpeD J Lydiate
Dec 1, 1995·Genome Génome / Conseil National De Recherches Canada·I A ParkinD J Lydiate
May 28, 2008·Cytogenetic and Genome Research·R Mercier, M Grelon
May 28, 2008·Cytogenetic and Genome Research·S D NicolasE Jenczewski
Aug 13, 2008·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·R DelourmeM Renard
Oct 7, 2008·Functional & Integrative Genomics·William D BovillJason A Able
Feb 5, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Xiaomao ChengKede Liu
Aug 19, 2009·Cold Spring Harbor Symposia on Quantitative Biology·D E SoltisP S Soltis
Nov 17, 2009·The New Phytologist·Marta CifuentesEric Jenczewski
Dec 3, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Wolfgang EckeHeiko C Becker
Dec 17, 2009·The New Phytologist·Robert T Gaeta, J Chris Pires
Feb 13, 2010·The New Phytologist·E SzadkowskiA-M Chèvre
Oct 1, 1996·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·E J BohuonD J Lydiate

❮ Previous
Next ❯

Citations

Aug 24, 2011·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·K Fujii, N Ohmido
Nov 11, 2011·Genome Génome / Conseil National De Recherches Canada·Ming HaoDengcai Liu
Jul 2, 2015·Molecular Genetics and Genomics : MGG·Faisal NourozJ S Heslop-Harrison
Nov 9, 2012·Journal of Experimental Botany·Wayne CrismaniRaphael Mercier
Jul 15, 2015·Trends in Biotechnology·Annaliese S Mason, Jacqueline Batley
Mar 23, 2015·Plant Reproduction·Arnaud Ronceret, Jean-Philippe Vielle-Calzada
Jan 18, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Margaret W MwathiAnnaliese S Mason
Sep 6, 2012·International Journal of Molecular Sciences·Riccardo AversanoDomenico Carputo
Dec 2, 2011·American Journal of Botany·Rajanikanth GovindarajuluC Donovan Bailey
Mar 3, 2015·The New Phytologist·Jesse D Hollister
Jul 14, 2018·Frontiers in Plant Science·Alexandre PeléAnne-Marie Chèvre
Jul 8, 2019·Chromosome Research : an International Journal on the Molecular, Supramolecular and Evolutionary Aspects of Chromosome Biology·Roman GaebeleinAnnaliese S Mason
Feb 28, 2021·The New Phytologist·Julie Ferreira de CarvalhoMathieu Rousseau-Gueutin
Sep 4, 2021·Plant Physiology and Biochemistry : PPB·Kui LiDayong Wei

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