Maintenance of genetic variation in automictic root-knot nematodes

Maintenance of genetic variation in automictic root-knot nematodes Nematology , 2008, Vol. 10(3), 313-321 Maintenance of genetic variation in automictic root-knot nematodes J.G. (Hans) VAN DER B EEK 1 , ∗ and Laas P. P I J NAC K ER 2 1 Ministry of Agriculture, Nature and Food Quality, Plant Protection Service, P.O. Box 9102, 6700 HC Wageningen, The Netherlands 2 Department of Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen (RUG), P.O. Box 14, 9750 AA Haren, The Netherlands Received: 23 August 2007; revised: 23 October 2007 Accepted for publication: 25 October 2007 Summary – Differences in amplified fragment length polymorphisms (AFLP) between isolates and between mono-female lines of facultative automictic Meloidogyne hapla race A and obligate apomictic M. incognita were determined to test the hypothesis that inverted meiosis occurs. DNA of the parthenogenetic nematode lines were extracted from juveniles, which had been propagated for two generations, allowing males in M. hapla lines to be formed and fertilisation to take place. Based on AFLP analysis, the genetic distance between mono-female lines of M. incognita appeared to be almost nil. By contrast, the genetic distance between isolates and between mono-female lines after seven generations of parthenogenesis of M. hapla was larger. The genetic distance http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematology Brill

Maintenance of genetic variation in automictic root-knot nematodes

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Publisher
BRILL
Copyright
© 2008 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1388-5545
eISSN
1568-5411
D.O.I.
10.1163/156854108783900221
Publisher site
See Article on Publisher Site

Abstract

Nematology , 2008, Vol. 10(3), 313-321 Maintenance of genetic variation in automictic root-knot nematodes J.G. (Hans) VAN DER B EEK 1 , ∗ and Laas P. P I J NAC K ER 2 1 Ministry of Agriculture, Nature and Food Quality, Plant Protection Service, P.O. Box 9102, 6700 HC Wageningen, The Netherlands 2 Department of Genetics, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen (RUG), P.O. Box 14, 9750 AA Haren, The Netherlands Received: 23 August 2007; revised: 23 October 2007 Accepted for publication: 25 October 2007 Summary – Differences in amplified fragment length polymorphisms (AFLP) between isolates and between mono-female lines of facultative automictic Meloidogyne hapla race A and obligate apomictic M. incognita were determined to test the hypothesis that inverted meiosis occurs. DNA of the parthenogenetic nematode lines were extracted from juveniles, which had been propagated for two generations, allowing males in M. hapla lines to be formed and fertilisation to take place. Based on AFLP analysis, the genetic distance between mono-female lines of M. incognita appeared to be almost nil. By contrast, the genetic distance between isolates and between mono-female lines after seven generations of parthenogenesis of M. hapla was larger. The genetic distance

Journal

NematologyBrill

Published: Jan 1, 2008

Keywords: HETEROZYGOSITY; MELOIDOGYNE INCOGNITA; MELOIDOGYNE HAPLA; AFLP; MELOIDOGYNE; POST-REDUCTIONAL MEIOSIS; INVERTED MEIOSIS

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