Literature DB >> 19219609

Twinned microspore-derived embryos of canola (Brassica napus L.) are genetically identical.

Anouska Cousin1, Matthew N Nelson.   

Abstract

Microspore culture is used extensively in several crop species to generate diverse populations of homozygous, doubled haploid lines for breeding and genetic analyses. In our canola (Brassica napus L.) doubled haploid breeding programme we regularly observe conjoined microspore-derived embryos, most commonly twins, joined either at the base of the hypocotyl or along the length of the hypocotyl axis. The aim of this study was to determine if twinned embryos were genetically identical or non-identical in order to gauge their value for breeding and linkage analysis. Microsatellite marker fingerprinting of 12 pairs of twinned embryos produced by microspore culture of heterozygous F(1) lines revealed that pairs of twins were genetically identical. Based on this finding, we recommend breeders and geneticists using microspore culture technology to retain only one embryo from each pair of twinned embryos.

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Year:  2009        PMID： 19219609     DOI： 10.1007/s00299-009-0677-3

Source DB:  PubMed          Journal:  Plant Cell Rep        ISSN： 0721-7714            Impact factor:   4.570


  10 in total

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4.  Regeneration of zygotic-like microspore-derived embryos suggests an important role for the suspensor in early embryo patterning.

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Journal:  J Exp Bot       Date:  2008-02-13       Impact factor: 6.992

5.  Formation of multiple embryo-like structures from single microspores during maize anther culture.

Authors:  Y Wan; J M Widholm
Journal:  Plant Cell Rep       Date:  1992-09       Impact factor: 4.570

6.  A continuous culture system of direct somatic embryogenesis in microspore-derived embryos of Brassica juncea.

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Journal:  Plant Cell Rep       Date:  1993-03       Impact factor: 4.570

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8.  Nutrient requirements of suspension cultures of soybean root cells.

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Authors:  L H Filonova; S von Arnold; G Daniel; P V Bozhkov
Journal:  Cell Death Differ       Date:  2002-10       Impact factor: 15.828

10.  Efficient large-scale development of microsatellites for marker and mapping applications in Brassica crop species.

Authors:  A J Lowe; C Moule; M Trick; K J Edwards
Journal:  Theor Appl Genet       Date:  2003-12-05       Impact factor: 5.699
  10 in total
  7 in total

1.  Genotypic effects on the frequency of homoeologous and homologous recombination in Brassica napus × B. carinata hybrids.

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2.  Centromere Locations in Brassica A and C Genomes Revealed Through Half-Tetrad Analysis.

Authors:  Annaliese S Mason; Mathieu Rousseau-Gueutin; Jérôme Morice; Philipp E Bayer; Naghmeh Besharat; Anouska Cousin; Aneeta Pradhan; Isobel A P Parkin; Anne-Marie Chèvre; Jacqueline Batley; Matthew N Nelson
Journal:  Genetics       Date:  2015-11-27       Impact factor: 4.562

Review 3.  Microspore embryogenesis in Brassica: calcium signaling, epigenetic modification, and programmed cell death.

Authors:  Behzad Ahmadi; Medya Ahmadi; Jaime A Teixeira da Silva
Journal:  Planta       Date:  2018-08-31       Impact factor: 4.116

4.  Production of viable male unreduced gametes in Brassica interspecific hybrids is genotype specific and stimulated by cold temperatures.

Authors:  Annaliese S Mason; Matthew N Nelson; Guijun Yan; Wallace A Cowling
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5.  Diversity array technology markers: genetic diversity analyses and linkage map construction in rapeseed (Brassica napus L.).

Authors:  Harsh Raman; Rosy Raman; Matthew N Nelson; M N Aslam; Ravikesavan Rajasekaran; Neil Wratten; Wallace A Cowling; A Kilian; Andrew G Sharpe; Joerg Schondelmaier
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6.  Microspore culture reveals complex meiotic behaviour in a trigenomic Brassica hybrid.

Authors:  Annaliese S Mason; Junko Takahira; Chhaya Atri; Birgit Samans; Alice Hayward; Wallace A Cowling; Jacqueline Batley; Matthew N Nelson
Journal:  BMC Plant Biol       Date:  2015-07-08       Impact factor: 4.215

7.  Quantitative trait loci for thermal time to flowering and photoperiod responsiveness discovered in summer annual-type Brassica napus L.

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Journal:  PLoS One       Date:  2014-07-25       Impact factor: 3.240
  7 in total

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