A molecular phylogenetic framework for cocksfoot (Dactylis glomerata L.) improvement
Alan V. Stewart A C and Nicholas W. Ellison B
+ Author Affiliations
- Author Affiliations
A PGG Wrightson Seeds, PO Box 175, Lincoln 7640, New Zealand.
B AgResearch Grasslands, Private Bag 11008, Palmerston North, New Zealand.
C Corresponding author. Email: astewart@pggwrightsonseeds.co.nz
Crop and Pasture Science 65(8) 780-786 https://doi.org/10.1071/CP13407
Submitted: 26 November 2013 Accepted: 5 May 2014 Published: 16 July 2014
Abstract
The recently completed molecular phylogenetic analysis of Dactylis germplasm has provided a clear evolutionary history of the diploid Dactylis from which modern tetraploid germplasm and cultivars have evolved. This framework will allow us to use fully a wider range of both diploid and tetraploid germplasm for a more systematic improvement of cocksfoot. Germplasm of many diploid and tetraploid forms is under serious threat from habitat degradation and climate change, and many forms are currently poorly represented in genebanks. It is critical that a wide range of these forms is collected for storage and conservation. It is also critical that core collections are developed and maintained, using molecular phylogenetic and genetic diversity information as the basic framework.
In order to apply molecular resources in an effective and balanced manner, pragmatic field breeding programs need to be continued in all major regions. This is a major concern for cocksfoot, as it is a species with limited international breeding investment. Viable, large-scale, cocksfoot breeding programs must be maintained internationally to allow adequate cultivar development, ongoing germplasm collection, introgression from wild germplasm and application of molecular resources.
Additional keywords: cocksfoot, Dactylis glomerata, germplasm, molecular breeding, phylogeny.
References
Ardouin P, Fiasson JL, Jay M, Lumaret R, Hubac JM (1985) Chemical diversification within Dactylis glomerata L. polyploid complex (Graminaceae). In ‘Proceedings NATO Symposium on Genetic Differentiation and Dispersal in Plants’. Vol. G5. (Eds P Jacquard, G Heim, J Antonovics) pp. 3–15. (Springer: Basel, Switzerland)Baumann U, Juttner J, Bian X, Langridge P (2000) Self-incompatibility in the grasses. Annals of Botany 85, 203–209.
| Self-incompatibility in the grasses.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXivF2lsrc%3D&md5=53212b2735f40405d84671d4b980f73eCAS |
Blanchette M, Diallo AB, Green ED, Miller W, Haussler D (2008) Computational reconstruction of ancestral DNA sequences. In ‘Methods in molecular biology: phylogenomics’. (Ed. WJ Murphy) pp. 171–184. (Humana Press Inc.: Totowa, NJ, USA)
Bondesen OB (2007) Seed production and seed trade in a globalised world. In ‘Seed production in the northern light. Proceedings 6th International Herbage Seed Conference’. Gjennestad, Norway, 2007. (Eds TS Aamlid, LT Havstad, B Boelt) pp. 9–12. (Bioforsk: Ås, Norway)
Borrill M (1961) Patterns of morphological variation in diploid and tetraploid Dactylis. Botanical Journal of the Linnean Society 56, 439–441.
Borrill M (1977) Evolution and genetic resources in cocksfoot. Annual Report Welsh Plant Breeding Station, pp. 90–209. Aberystwyth, Wales.
Borrill M, Carroll CP (1969) A chromosome atlas of the genus Dactylis (Part two). Cytologia 34, 6–17.
| A chromosome atlas of the genus Dactylis (Part two).Crossref | GoogleScholarGoogle Scholar |
Casler MD, Fales SL, McElroy AR (2000) Genetic progress from 40 years of cocksfoot breeding in North America measured under hay management. Crop Science 40, 1019–1025.
| Genetic progress from 40 years of cocksfoot breeding in North America measured under hay management.Crossref | GoogleScholarGoogle Scholar |
Cho MJ, Choi HW, Lemaux PG (2001) Transformed T0 orchardgrass (Dactylis glomerata L.) plants produced from highly regenerative tissues derived from mature seeds. Plant Cell Reports 20, 318–324.
| Transformed T0 orchardgrass (Dactylis glomerata L.) plants produced from highly regenerative tissues derived from mature seeds.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXksFyksLg%3D&md5=5e4e53b4c00b1b5ecf4f383879f5a770CAS |
Fiasson JL, Ardouin P, Jay M (1987) A phylogenetic groundplan of the specific complex Dactylis glomerata. Biochemical Systematics and Ecology 15, 225–229.
| A phylogenetic groundplan of the specific complex Dactylis glomerata.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL2sXksFGksbg%3D&md5=e4887fba3d38252733822eb63ccddd50CAS |
Hewitt GM (1996) Some genetic consequences of ice ages, and their role in divergence and speciation. Biological Journal of the Linnean Society 58, 247–276.
| Some genetic consequences of ice ages, and their role in divergence and speciation.Crossref | GoogleScholarGoogle Scholar |
Hewitt GM (1999) Post glacial recolonisation of European biota. Biological Journal of the Linnean Society 68, 87–112.
| Post glacial recolonisation of European biota.Crossref | GoogleScholarGoogle Scholar |
Kölliker R, Stadelmann FJ, Reidy B, Nösberger J (1999) Genetic variability of forage grass cultivars: A comparison of Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L. Euphytica 106, 261–270.
| Genetic variability of forage grass cultivars: A comparison of Festuca pratensis Huds., Lolium perenne L., and Dactylis glomerata L.Crossref | GoogleScholarGoogle Scholar |
Lewis EJ (1975) An alternate technique for the production of amphidiploids. Annual Report Welsh Plant Breeding Station, Aberystwyth, Wales. p. 15.
Liu ZY, Wang Y, Gallimore R, Notaro M, Prentice IC (2006) On the cause of abrupt vegetation collapse in North Africa during the Holocene: Climate variability vs. vegetation feedback. Geophysical Research Letters 33, L22709
| On the cause of abrupt vegetation collapse in North Africa during the Holocene: Climate variability vs. vegetation feedback.Crossref | GoogleScholarGoogle Scholar |
Lumaret R (1987) Differential degree in genetic divergence as a consequence of a long isolation in a diploid entity of Dactylis glomerata L. from the Guizhou region (China). In ‘2nd International Conference on the Paleoenvironment of East Asia from the Mid-Tertiary’. 9–14 January 1987, Hong Kong.
Lumaret R (1988) Cytology, genetics and evolution in the genus Dactylis. Critical Reviews in Plant Sciences 7, 55–91.
| Cytology, genetics and evolution in the genus Dactylis.Crossref | GoogleScholarGoogle Scholar |
Lumaret R, Barrientos E (1990) Phylogenetic relationships and gene flow between sympatric diploid and tetraploid plants of Dactylis glomerata (Gramineae). Plant Systematics and Evolution 169, 81–96.
| Phylogenetic relationships and gene flow between sympatric diploid and tetraploid plants of Dactylis glomerata (Gramineae).Crossref | GoogleScholarGoogle Scholar |
Lumaret R, Bowman CM, Dyer TA (1989) Autotetraploidy in Dactylis glomerata L.: further evidence from studies of chloroplast DNA variation. Theoretical and Applied Genetics 78, 393–399.
| Autotetraploidy in Dactylis glomerata L.: further evidence from studies of chloroplast DNA variation.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK3cXkslOr&md5=3eddf022a0249410d15cea6c3925597bCAS | 24227247PubMed |
Lumerat R, Bretagnolle F, Maceira NO (1992) 2n gamete frequency and bilateral polyploidization in Dactylis glomerata. In ‘Gametes with somatic chromosome number in the evolution and breeding of polyploid polysomic species: achievements and perspectives’. (Eds A Mariana, S Tavoletti) pp. 15–21. (Forage Plant Breeding Institute: Perugia, Italy)
Matzk F (1981) Successful crosses between Festuca arundinacea Schreb. and Dactylis glomerata L. Theoretical and Applied Genetics 60, 119–122.
| Successful crosses between Festuca arundinacea Schreb. and Dactylis glomerata L.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC2c3gslClsA%3D%3D&md5=cef27bc718829cd8958028562db0bf27CAS | 24276635PubMed |
Nakazumi H, Furuya M, Shimokouji H, Fujii H (1997) Wide hybridization between timothy (Phleum pratense L.) and orchardgrass (Dactylis glomerata L.). Bulletin Hokkaido Prefectural Agricultural Expt. Station (Japan) 72, 11–16.
Oertel C, Fuchs J, Matzk F (1996) Successful hybridization between Lolium and Dactylis. Plant Breeding 115, 101–105.
| Successful hybridization between Lolium and Dactylis.Crossref | GoogleScholarGoogle Scholar |
Parker PF, Borrill M (1968) Studies in Dactylis. 1 Fertility relationships in some diploid subspecies. New Phytologist 67, 649–662.
| Studies in Dactylis. 1 Fertility relationships in some diploid subspecies.Crossref | GoogleScholarGoogle Scholar |
Sahuquillo E, Lumaret R (1999) Chloroplast DNA variation in Dactylis glomerata L. taxa endemic to the Macaronesian islands. Molecular Ecology 8, 1797–1803.
| Chloroplast DNA variation in Dactylis glomerata L. taxa endemic to the Macaronesian islands.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3cXlsVygug%3D%3D&md5=9f34f2403627158b9b8a79131bea5f8eCAS | 10620224PubMed |
Soltis DE, Soltis PS (1993) Molecular data and the dynamic nature of polyploidy. Critical Reviews in Plant Sciences 12, 243–273.
| Molecular data and the dynamic nature of polyploidy.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK2cXntlaqsw%3D%3D&md5=d55b083bd082234a7ac164775f11ae11CAS |
Spangenberg GC, Forster JW, Edwards D, John U, Mouradov A, Emmerling M, Batley J, Felitti S, Cogan NOI, Smith KF, Dobrowolski MP (2005). Future directions in the molecular breeding of forage and turf. In ‘Molecular breeding for the genetic improvement of forage crops and turf. 4th International Symposium on the Molecular Breeding of Forage and Turf—A Satellite Workshop of the XXth International Grassland Congress’. Aberystwyth, Wales, 3–7 July 2005. (Ed. MO Humphreys) pp. 83–97. (International Grassland Congress)
Stebbins GL (1971) ‘Chromosomal evolution in higher plants.’ (Edward Arnold: London)
Stebbins GL, Zohary D (1959) Cytogenetic and evolutionary studies in the genus Dactylis. I Morphological, distribution and inter relationships of the diploid subspecies. University of California Publications in Botany 31, 1–40.
Stewart AV, Ellison N (2011) ‘The genus Dactylis. Wealth of wild species: Role in plant genome elucidation and improvement.’ (Springer: New York)
Stewart AV, Ellison NE, Martín Osorio VE (2011) Origins of diploid Dactylis from the Canary Islands as determined by DNA sequencing. In ‘Breeding strategies for sustainable forage and turf grass improvement’. (Eds S Barth, D Milbourne) pp. 225–229. (Springer)
van Santen E, Casler MD (1990) Forage quality and yield in 4x progeny from interploidy crosses in Dactylis L. Crop Science 30, 35–39.
| Forage quality and yield in 4x progeny from interploidy crosses in Dactylis L.Crossref | GoogleScholarGoogle Scholar |
Wetschnig W (1991) Karyotype morphology and some diploid subspecies of Dactylis glomerata L. (Poaceae). Phyton 31, 35–55.
Zenkteler M, Nitzsche W (1984) Wide hybridization experiments in cereals. Theoretical and Applied Genetics 68, 311–315.
| Wide hybridization experiments in cereals.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC2c7pvF2mtw%3D%3D&md5=f6b905f417aceaeb27127fcd1bc1554cCAS | 24257639PubMed |
