Genetic relationships among the annual species of Cicer L.
- 88 Downloads
Genetic relationships between 7 annual species of the genus Cicer, including the cultivated chickpea, have been studied. These species were assigned to 3 crossability groups. In each group interspecific hybrids could be obtained but their fertility differed considerably in the various cross combinations. Crosses between members of different groups yielded no viable seeds. The possibility of gene transfer from the wild species to the cultivated chickpea C. arietinum was also assessed. Only two species could be considered for this purpose, C. reticulatum, which is the wild progenitor of the cultivated species, and C. echinospermum, which is in the secondary gene pool of C. arietinum. A unique postzygotic reproductive barrier mechanism was found between the members of Group II, C. judaicum, C. pinnatifidum and C. bijugum. It is based on a disharmony in the growth rate of the stigma and the anthers at the time of anthesis of the F1 interspecific hybrid so that selfpollination is avoided. It is proposed that this kind of mechanism has been involved only when an effective spatial isolation between the three species had been obtained.
KeywordsSeed Coat Wild Species Interspecific Hybrid Parental Species Annual Species
Unable to display preview. Download preview PDF.
- Davis, H.P.: Material for a flora of Turkey. XIX. Leguminosae-Vicieae. Notes Roy. Bot. Gard. Edin. 29, 312–313 (1969)Google Scholar
- Davis, H.P.: Flora of Turkey 3, 267–274. Edinburgh: Univ. Press 1970Google Scholar
- Ladizinsky, G.: A new Cicer from Turkey. Notes Roy. Bot. Gard. Edin. 34, 201–202 (1975)Google Scholar
- Ladizinky, G.; Adler, A.: The origin of chickpea as indicated by seed protein electrophoresis. Israel J. Bot. 24, 183–189 (1975)Google Scholar
- Linczevski, I.A.: Cicer L. in Flora USSR (Komarov, V.L.; Shishkin, B.; Bobrov, E., eds), 13, 386–406. Leningrad 1948Google Scholar
- Maesen, L.J.G. van der: Cicer L. A monograph of the genus with special reference to the chickpea (Cicer arietinum L.), its ecology and cultivation. Thesis Agric. Univ. Wageningen Meded. Landbouwhogesch. Wageningen 72-10, 342 pp. (1972)Google Scholar
- Popov, M.G.: The genus Cicer and its species. Bull. Appl. Bot. Genet. Pl. Breeding 21, 1–254 (1929)Google Scholar
- Post, G.E.: Flora of Syria, Palestine and Sina. 2, 416. Beirut: American Press 1932Google Scholar
- Zohary, M.: Flora Palestine. Israel Acad. Sci. Hum. Jerusalem 2, 193–194 (1972)Google Scholar