|

PROJECT
NEWS
Dr. Hailu Tefera has worked on tef (the Ethiopian
staple cereal) improvement beginning from his first employment
at Debre Zeit Agricultural Research Center (DZARC) in 1982 until
he left in January 2007. Spending more than two decades of research
on a crop that was not a favorite research material to many
rserachers, in most of the years as National Coordinator, manifests
Hailu’s extraordinary tenacity and dedication. Hailu’s
outstanding meritorious achievements include: released nine
tef varieties under his leadership; made more than 100 tef cross-combinations
(note that tef hybridization is tedious!), developed homozygous
lines derived thereof, on which the tef improvement work in
all over the country relies on; authored/coauthored more than
60 publications on tef (of these, 37 were published in internationally
reputed peer-reviewed Journals that included Science, Food policy,
Theoretical & Applied Genetics, Hereditas, Crop Science,
Genome, BMC plant Biology, and Euphytica among others); and
has immensely contributed to agriculture education in Ethiopia
through teaching, advisorship and sitting in Examination Boards
for Masters and Doctoral programs.
Dr. Hailu has also been receiving funds from
external donors. Using the competitive grant he (as Principal
Investigator) secured for three phases (since 1995) from the
McKnight Foundations Collaborative Crop Research Program in
tef (MF-CCRP), Hailu has expanded the horizon of tef research
that made the crop to join in the forefront of scientific research.
Through this project, in collaboration with Cornell University,
the most outstanding achievements have been the following: a)
The release from a targeted cross of the variety “Quncho”,
b) molecular characterization of tef genetic resources, c) construction
of the tef linkage-map, d) organization of the first international
tef workshop, e) construction of the molecular database of tef.
In this project, the tireless and lead efforts of Hailu have
contributed to the capacity building of DZARC, and other EIAR
and Regional Centers involved in tef research. Notable among
others are the training of 2 PhDs, 8 MScs, and several short-term
training for technical assistants. It is because of the leadership
trust Hailu has created on MF-CCRP that led to the expansion
of the project by including finger millet in three countries
(Kenya, Uganda, Ethiopia) under the title “Genetic improvement
technology dissemination and seed system development in African
Chloride cereals”.
The Advisory Committee (AC) for the tef component
of the African Chloridoid Cereals project acknowledges, with
the highest regard, and would like to record the exemplary contribution
and leadership of Dr. Hailu in the MF-CCRP for more than a decade.
The project has been one of the most successful, transparent,
externally funded projects in the EIAR. Hailu is now Soybean
breeder for sub-Saharan Africa, stationed at Malawi, International
Institute of Tropical Agriculture. The AC would like to express
its best wishes, however belatedly, to Dr. Hailu Tefera in his
new position.
The Advisory Committee
MF-CCRP, African Chloridoid Cereals
Ethiopian Institute of Agricultural Research
|
| | |
Breeding
and Genetic Basis of Tef [Eragrostis tef (Zucc.) Trotter]
Improvement in Ethiopia
|
The growing population of Ethiopia,
which is now estimated more than 70 million, coupled
with deteriorating environmental conditions for other
cereals, is posing an ever-increasing demand for tef.
Increasing tef productivity in the various agro-ecologies
of Ethiopia is therefore the primary goal of the National
Tef Research Project. Because its importance as a grain
crop is mainly of local importance, and only a handful
of scientists are involved, tef has lagged behind in
benefiting from the state-of-the-art scientific research.
OBJECTIVE
The overall objectives of this research and training
program are a) genetic improvement of tef to increase
its yield potential, b) improve lodging resistance,
c) develop a genetic link between tef and model crop
species through the use of comparative genomics, and
d) upgrade the knowledge of tef researchers through
long and short-term trainings.
METHODOLOGY
Through this project, both conventional breeding works
to develop suitable tef varieties for the various agro-ecologies
and generation of basic knowledge through molecular
studies has been carried out. We have done several crosses,
including interspecific ones, and developed recombinant
inbred lines for the purposes of molecular characterization,
linkage-map construction, QTL identification and agronomic
evaluations. Participatory breeding approaches are also
being used to disseminate seeds of already released
varieties and, on those tef materials that are in advanced
performance testing stages, to shorten the variety development
duration and speed up their dissemination afterwards.
PUBLICATION
THESIS
Elizabeth V. Graznak
2003. Identification of Agronomic Traits Associated
with Quantitative Trait Loci in a Recombinant Inbred
Line of Tef (Eragrostis tef). MSc Thesis, Cornell University,
USA.
Fisseha Worede
2003. Association among yield and yield related traits
in recombinant inbred lines of an interspecific cross
Eragrostis tef x Eragrostis pilosa. MSc Thesis. Alemaya
University, Dire Dawa, Ethiopia.
JOURANL
ARTICLES
Mulu Ayele
1999. Genetic diversity in tef [Eragrostis tef (Zucc.)
Trotter] for osmotic adjustment, root traits, and Amplified
Fragment Length Polymorphism. PhD Thesis. Texas Tech
University, Lubbock, USA.
Tesfaye Teferra
1997. The influence of low moisture stress on physiological
traits, yield and yield components of tef (Eragrostis
tef). M.Sc.Thesis, Alemaya University of Agriculture,
Dire Dawa, Ethiopia.
Tiruneh Kefyalew
1999. Assessement of genotype x environment interaction
for yield and yield-traits in tef (Eragrostis tef) genotypes.
MSc Thesis. Alemaya University of Agriculture, Dire
Dawa, Ethiopia.JOURNAL ARTICLES
Assefa, A., S. Ketema, H. Tefera, T.Kefyalew
& F. Hundera.
2000. Trait diversity, heritability
and genetic advance in selected germplasm lines of tef
[Eragrostis tef (Zucc.) Trotter]. Hereditas 133:29-37.
Assefa, K., S. Ketema, H. Tefera, H. T. Nguyen,
A.Blum, M. Ayele, G. Bai, B. Simane & T. Kefyalew.
1999. Diversity among germplasm lines of the Ethiopian
cereal tef [Eragrostis tef Zucc.)Trotter]. Euphytica
106:87-97.
Ayele, M., H. Tefera, K. Assefa & Henry
T. Nguyen.
1999. Genetic characterization of two
Eragrostis species using AFLP and morphological traits.
Hereditas 130: 33-40.
Ayele, M. & H. T. Nguyen
2000. Evaluation of amplified fragment length polymorphism
markers in tef, Eragrostis tef (Zucc.) Trotter, and
related species. Plant Breed. 119:403-410.
Bai, G., Hailu Tefera, Mulu Ayele & H. T. Nguyen
1999. A genetic linkage map of Tef [Eragrostis tef (Zucc.)
Trotter] based on amplified fragment length polymorphism.
Theor. Appl. Genet. 99:599-604.
Bai, G., Mulu Ayele, Hailu Tefera & H. T. Nguyen.
1999. Amplified Fragment Length Polymorphism Analysis
of Tef [Eragrostis tef (Zucc.) Trotter]. Crop Sci. 39:819-824.
Bai, G., Mulu Ayele, Hailu Tefera & Henry T. Nguyen.
2000. Genetic diversity in tef [Eragrostis tef (Zucc)
Trotter] and its relatives as revealed by Random Amplified
Polymorphic DNAs. Euphytica 112: 15-22.
Hailu Tefera
2002. Inheritance of morphological and agronomic traits
in tef (Eragrostis tef). J. Genet. & Breed. (In
Press).
Kebebew, A., Hailu Tefera, A. Merker, T. Kefyalew &
F. Hundera.
2001. Variability, heritability and genetic advance
in pheno-morphic and agronomic traits of tef [Eragrostis
tef (Zucc.) Trotter germplasm from eight regions of
Ethiopia. Hereditas 134:103-113.
Tefera, H., K. Assefa & G. Belay.
2003. Evaluation of interspecific recombinant inbred
lines of Eragrostis tef x E. pilosa. J. Genet. Breed.
56: (In press).
Teferra, T., H. Tefera, B. Simane & M. Tuinstra.
2000. The effect of moisture stress on growth, leaf
water loss rate and phenological development of tef
(Eragrostis tef). Tropical Sci. 40:100-107.
Teferra, T., H. Tefera, B. Simane & M. Tuinstra
2000. The influence of drought stress on yield of tef
(Eragrostis tef). Tropical Sci. 40:40-45.
Tefera, H., K. Assefa, F. Hundera, T. Kefyalew &
T. Teferra.
2003. Heritability and genetic advance in recombinant
inbred lines of tef. Euphytica 131: 91-96.
Zhang, D., M. Ayele, H. Tefera & H. T. Nguyen.
2001. RFLP linkage map of the Ethiopian cereal tef [Eragrostis
tef (Zucc.) Trotter]. Theor. Appl. Genet. 102: 957-964.
|
| |
| ...
Leading the Agriculture
to Lead the Economy
|
|
TEAM MEAMBERS
PRINCIPAL INVESTIGATOR
Dr. Hailu Tefera, Debre Zeit Research Center, EIAR,
E-mail tefres@telecom.net.et
COLLABORATORS
Prof. Mark Sorrells, Cornell University, USA,
Email: mes12@cornell.edu
TEAM
MEMBERS
Dr. Getachew Belay, EIAR/DZARC, Postdoctoral
Research Associate
Dr. Ju Kyung, Cornell University, Postdoc
Solomon Chanyalew, EIAR/MARC, PhD student
Aderajew Haddis, TARI/MARC, PhD student
Tadelle Tadesse, EIAR/HARC, MSc student
Chimdo Anchala, EIAR/MARC, MSc student, and
Tef researchers at Adet, Debre Zeit, Holetta, Melkassa and Mekelle
Research Centers.
Dr Berhanu Shilima
POB 35, Adami Tulu Research Center, Zeway,
Ethiopia
Phone/Fax: 251 06 413230
E-mail: atarc@ethionet.et
PARTNER INSTITUTION/FUNCING
ORGANIZATIONS
Ethiopian Institute of Agricultural Research
(EIAR)
Cornell University, USA
Adet, Debre Zeit, Holetta, Melkassa and Mekelle Agricultural
Research Centers
FUNDING ORGANIZATIONS
The McKnight Foundation, Collaborative Crop Research Program.
710 Second Street South, Minneapolis, Minnesota 5501.
Web: http://www.mcknight.orgBOOK
BOOKS
Hailu Tefera, Getachew Belay and Mark E. Sorrells
(Eds.).
2000. Narrowing the Rift: Tef Research and
Development. Proceedings of an International Workshop on Tef
Genetics and Improvement, 16 -19 October 2000, Addis Ababa.
earo, Addis Ababa.
DURATION
1995–2006
SEE ALSO
http://WWW.mcknight.org
|
|
|