Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-25T07:51:02.888Z Has data issue: false hasContentIssue false
  • English
  • Français

Phenotypic diversity in tetraploid wheats collected from Bale and Wello regions of Ethiopia

Published online by Cambridge University Press:  12 February 2007

Firdissa Eticha ,
Endeshaw Bekele ,
Getachew Belay  and
Andreas Börner
Firdissa Eticha
Affiliation:
Bako Agricultural Research Center, P.O. Box 3, W. Shewa, Ethiopia
Endeshaw Bekele
Affiliation:
Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
Getachew Belay
Affiliation:
Debre-Zeit Agricultural Research Center, P.O. Box 32, Debre Zeit, Ethiopia
Andreas Börner*
Affiliation:
Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK), Corrensstr. 3, D-06466, Gatersleben, Germany
*
*Corresponding author: E-mail:, [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The phenotypic diversity of 32 landrace populations of tetraploid wheats originating from the Bale and Wello regions of Ethiopia was studied. Eight heritable qualitative traits (glume hairiness, glume colour, awnedness, awn length, beak awn, awn colour, spike density, seed colour) were measured on 2453 individual plants (45–110 plants per landrace). The frequencies of each phenotypic class were used to estimate and analyse the diversity at different levels (population, altitude, region). Beak awn and seed colour showed the highest diversity index, and glume hairiness the lowest. Glume hairiness, glume colour, beak awn and awn colour were regionally variable, while gradients across altitude were observed for glume hairiness, glume colour and beak awn. Variation was, however, largely due to the differences in the level of the different characters within populations. On a regional basis, a higher mean diversity index was observed for materials from Wello than from Bale. No drastic change in the overall diversity between these collections and those analysed in the 1970s was evident.

Keywords

Ethiopian germplasmgenetic diversitymorphological traitstetraploid wheatTriticum spp
Type
Research Article
Information
Plant Genetic Resources , Volume 3 , Issue 1 , April 2005 , pp. 35 - 43
Copyright
Copyright © NIAB 2005

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alamerew, S, Chebotar, S, Huang, XQ, Röder, MS and Börner, A (2004) Genetic diversity in Ethiopian hexaploid and tetraploid wheat germplasm assessed by microsatellite markers. Genetic Resources and Crop Evolution 51: 559–567.CrossRefGoogle Scholar
Bechere, E, Belay, G, Mitiku, D and Merker, A (1996) Phenotypic diversity of tetraploid wheat landraces from northern and north-central regions of Ethiopia. Hereditas 124: 165–172.Google Scholar
Bekele, E (1984) Analysis of regional patterns of phenotypic diversity in the Ethiopian tetraploid and hexaploid wheats. Hereditas 100: 131–154.CrossRefGoogle Scholar
Belay, G (1997) Genetic variation, breeding potential and cytogenetic profile of Ethiopian tetraploid wheat ( Triticum turgidum L.) landraces. PhD Thesis, Swedish University of Agricultural Sciences, Uppsala.Google Scholar
Ben Amer, IM, Börner, A and Röder, MS (2001) Detection of genetic diversity in Libyan wheat genotypes using wheat microsatellite markers. Genetic Resources and Crop Evolution 48: 579–585.CrossRefGoogle Scholar
Chebotar, SV and Sivolap, YM (2001) Differentiation, identification and characterization of Triticum aestivum L. varieties from Ukrainian breeding programs by using STMS analysis. Cytology and Genetics 35: 18–27 (in Russian).Google Scholar
Donini, P, Stephenson, P, Bryan, GJ and Koebner, RMD (1998) The potential of microsatellites for high throughput genetic diversity assessment in wheat and barley. Genetic Resources and Crop Evolution 45: 415–421.Google Scholar
Donini, P, Law, JR, Koebner, RMD, Reeves, JC and Cooke, RJ (2000) Temporal trends in the diversity of UK wheat. Theoretical and Applied Genetics 100: 912–917.CrossRefGoogle Scholar
Eticha, F, Belay, G and Bekele, E (2005) Species diversity in wheat landrace populations from two regions of Ethiopia. Genetic Resources and Crop Evolution (in press).Google Scholar
Fahima, T, Röder, MS, Grama, A and Nevo, E (1998) Microsatellite DNA polymorphism divergence in Triticum dicoccoides accessions highly resistant to yellow rust. Theoretical and Applied Genetics 96: 187–195.CrossRefGoogle Scholar
Harlan, JR (1971) Agricultural origins: centers and non-centers. Science 174: 468–473.CrossRefGoogle Scholar
Huang, XQ, Börner, A, Röder, MS and Ganal, MW (2002) Assessing genetic diversity of wheat (Triticum aestivum L.) germplasm using microsatellite markers. Theoretical and Applied Genetics 105: 699–707.CrossRefGoogle ScholarPubMed
IPGRI (1994) Descriptors of Wheat (Triticum spp.). Rome: International Plant Genetic Resources Institute.Google Scholar
Jain, KS, Qualset, CO, Bhatt, GM and Wu, KK (1975) Geographical patterns of phenotypic diversity in a world collection of durum wheats. Crop Science 15: 700–704.CrossRefGoogle Scholar
Khlestkina, EK, Huang, XQ, Quenum, FJB, Chebotar, S, Röder, MS and Börner, A (2004 a) Genetic diversity in cultivated plants—loss or stability?. Theoretical and Applied Genetics 108: 1466–1472.CrossRefGoogle ScholarPubMed
Khlestkina, EK, Röder, MS, Efremova, TT, Börner, A and Shumny, VK (2004 b) The genetic diversity of old and modern Siberian varieties of common spring wheat determined by microsatellite markers. Plant Breeding 123: 122–127.CrossRefGoogle Scholar
Klug, WS and Cummings, MR (1994) Concepts of Genetics, 4th edn. USA: Macmillan College Publishing Company.Google Scholar
Manifesto, MM, Schlatter, AR, Hopp, HE, Suarez, EY and Dubcovsky, J (2000) Quantitative assessment of genetic erosion among bread wheat cultivars using SSRs. Annual Wheat Newsletter 46: 23–24.Google Scholar
Negassa, M (1986) Estimates of phenotypic diversity and breeding potential of Ethiopian wheats. Hereditas 104: 41–48.CrossRefGoogle Scholar
Pecetti, L and Damania, AB (1996) Geographic variation in tetraploid wheat (Triticum turgidum ssp. turgidum conar. durum ) landraces from two provinces of Ethiopia. Genetic Research and Crop Evolution 43: 395–407.CrossRefGoogle Scholar
Plaschke, J, Ganal, MW and Röder, MS (1995) Detection of genetic diversity in closely related bread wheat using microsatellite markers. Theoretical and Applied Genetics 91: 1001–1007.CrossRefGoogle ScholarPubMed
Reynolds, MP, Skovmand, B, Trethowan, R and Pfeiffer, W (1999) Evaluating a conceptual model for drought tolerance. In: Ribaut, JM (ed.) Using Molecular Markers to Improve Drought Tolerance. Mexico D.F.: CIMMYT, pp. 49–53.Google Scholar
Skovmand, B, Reynolds, M and Lage, J (2003) Collecting and managing wheat genetic resources and exploiting germplasm collections to find useful traits. Abstract, 1st Central Asian Wheat Conference,Almaty, pp. 389.Google Scholar
Tamiru, M (1999) Morphological and molecular diversity in durum wheat ( Triticum durum Desf.) landraces of North Shewa. MSc Thesis, Addis Ababa University.Google Scholar
Tesemma, T and Belay, G (1991) Aspects of tetraploid wheats with emphasis on durum wheat genetics and breeding. In: Gebremariam, H, Tanner, DG and Huluka, M (eds) Wheat Research in Ethiopia: A Historical Perspective. Addis Ababa: IAR/CIMMYT, pp. 47–71.Google Scholar
Tesemma, T, Belay, G and Werede, M (1991) Morphological diversity in wheat landrace populations from central highlands of Ethiopia. Hereditas 114: 172–176.Google Scholar
Tsegaye, S, Tesemma, T and Belay, G (1996) Relationships among tetraploid wheat (Triticum turgidum L.) landrace populations revealed by isozyme markers and agronomic characters. Theoretical and Applied Genetics 93: 600–605.CrossRefGoogle Scholar
Vavilov, NI (1951) The origin, variation, immunity and breeding of cultivated plants. Chronica Botanica 13: 1–351.Google Scholar
Warham, EJ (1988) Screening for kernel bunt (Tilletia indica) resistance in wheat, Triticale, rye, and barley. Canadian Journal of Plant Pathology 10: 57–70.CrossRefGoogle Scholar
Zeven, AC (1991) Wheats with purple and blue grains: a review. Euphytica 56: 243–258.CrossRefGoogle Scholar