Kahraman, A. and Pandey, A. and Khan, M.K. and Lindsay, D. and etl, .
(2017)
Distinct subgroups of Cicer echinospermum are
associated with hybrid sterility and breakdown
in interspecific crosses with cultivated Chickpea.
Crop Science, 57.
pp. 1-11.
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Abstract
Crop wild relatives are a reservoir of phenotypic
variation not present in the germplasm of cultivated
species and thus have great potential for
crop improvement. However, issues of genetic
compatibility often interfere with effective utilization
of crop wild relative taxa. Among chickpea
(Cicer arietinum L.) crop wild relatives, Cicer
echinospermum P.H. Davis is the sole species
in the secondary genepool, being partially compatible
with the primary genepool that is composed
of the cultigen and its progenitor wild
species Cicer reticulatum Ladizinksy. We report
results from genetic studies among interspecific
hybrids between cultivated chickpea and
accessions from six recently identified wild C.
echinospermum sites in southeastern Turkey,
encompassing the known genetic diversity of
the secondary genepool. Our studies indicate
that both hybrid sterility and hybrid breakdown
occur and are associated with distinct subgroups
of C. echinospermum. Analysis of earlygeneration
progenies suggests that both hybrid
sterility and hybrid breakdown are conditioned
by one to few genetic loci. These results clarify
ambiguity in the nature of the hybridization barriers
of reduced fertility in interspecific crossing
of cultivated chickpea with C. echinospermum
and should foster a more systematic and wider
use of C. echinospermum for base broadening
of cultivated chickpea.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
Crop wild relatives,phenotypic,germplasm,Chickpea,Hybrid Sterility, cultivated |
| Author Affiliation: |
Dep. of Field Crops, Harran Univ., Sanliurfa, Turkey |
| Subjects: |
Plant Production |
| Divisions: |
Chickpea |
| Depositing User: |
Mr T L Gautham
|
| Date Deposited: |
31 May 2018 10:55 |
| Last Modified: |
31 May 2018 10:55 |
| URI: |
http://eprints.icrisat.ac.in/id/eprint/15480 |
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