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DArTseq molecular markers for resistance to Phytophthora cinnamomi in pineapple (Ananas comosus L.)

DArTseq molecular markers for resistance to Phytophthora cinnamomi in pineapple (Ananas comosus L.) Root rot caused by Phytophthora cinnamomi is a major disease of pineapple worldwide, and while genetic resistance is known to exist within the genus, there have been few efforts to incorporate resistance into commercial varieties. The development of molecular markers and a better understanding of the physiology contributing to resistance would be a major advantage for breeding efforts. DArTseq was used in this study to investigate resistance to P. cinnamomi in pineapple. Resistance appears closely associated with a single broad loci on chromosome five covering the positions 4.6–5.5 Mb and two separate scaffolds. Thirteen putative resistance/susceptibility proteins were identified including six leucine-rich repeat receptor kinases, a chitin elicitor receptor kinase, a 2, 3-bisphosphoglycerate-dependent phosphoglycerate mutase, a microrchidia 4-like protein, a hypothetical protein, an uncharacterised protein family 0664 stress-induced protein, a transcription factor bHLH and a ribonuclease 2. The DArTseq bulk segregate approach successfully identified molecular markers associated with resistance to P. cinnamomi in pineapple. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Australasian Plant Pathology Springer Journals

DArTseq molecular markers for resistance to Phytophthora cinnamomi in pineapple (Ananas comosus L.)

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References (56)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Australasian Plant Pathology Society Inc.
Subject
Life Sciences; Plant Pathology; Plant Sciences; Agriculture; Entomology; Ecology
ISSN
0815-3191
eISSN
1448-6032
DOI
10.1007/s13313-017-0512-1
Publisher site
See Article on Publisher Site

Abstract

Root rot caused by Phytophthora cinnamomi is a major disease of pineapple worldwide, and while genetic resistance is known to exist within the genus, there have been few efforts to incorporate resistance into commercial varieties. The development of molecular markers and a better understanding of the physiology contributing to resistance would be a major advantage for breeding efforts. DArTseq was used in this study to investigate resistance to P. cinnamomi in pineapple. Resistance appears closely associated with a single broad loci on chromosome five covering the positions 4.6–5.5 Mb and two separate scaffolds. Thirteen putative resistance/susceptibility proteins were identified including six leucine-rich repeat receptor kinases, a chitin elicitor receptor kinase, a 2, 3-bisphosphoglycerate-dependent phosphoglycerate mutase, a microrchidia 4-like protein, a hypothetical protein, an uncharacterised protein family 0664 stress-induced protein, a transcription factor bHLH and a ribonuclease 2. The DArTseq bulk segregate approach successfully identified molecular markers associated with resistance to P. cinnamomi in pineapple.

Journal

Australasian Plant PathologySpringer Journals

Published: Aug 22, 2017

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