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An interspecific cross (BC 1) involving a species with one of the largest genomes in the Coffea genus [Coffea heterocalyx (HET), qDNA = 1.74 pg] and a species with a medium-sized genome [Coffea canephora (CAN), qDNA = 1.43 pg] was studied using two types of molecular markers, AFLP and SSR. One hu...


Coulibaly, IRevol, BNoirot, MPoncet, VLorieux, MCarasco-Lacombe, CMinier, JDufour, MHamon, P[AFLP and SSR polymorphism in a coffea interspecific backcross progeny [(C. heterocalyx x C. canephora) x C. canephora]]AFLP and SSR polymorphism in a coffea interspecific backcross progeny [(C. heterocalyx x C. canephora) x C. canephora]
Singh, Shree P.Debouck, Daniel G.Roca, William M.[Interspecific hybridization between Phaseolus vulgaris L. and P. parvifolius Freytag]Interspecific hybridization between Phaseolus vulgaris L. and P. parvifolius Freytag

Inheritance of chloroplast DNA (cpDNA) was examined in 41 F1 progeny obtained from the following interspecific Bromus crosses: Bromus arvensis (2n = 14) × B. inermis (2n = 4x = 28); B. arvensis × B. inermis (2n = 8x = 56); B. arvensis × B. erectus (2n = 6x = 42); B. arvensis × B. erectus (2n = 8x...


Pillay, M.Armstrong, K.C.[Maternal inheritance of chloroplast DNA in interspecific crosses of Bromus]Maternal inheritance of chloroplast DNA in interspecific crosses of Bromus

In India cassava breeding is done mainly at the Central Tuber Crops Research Institute (CTCRI) in Trivandrum, as well as in the State Agricultural Universities through the All India Co-ordinating Centres. CTCRI maintains 786 exotic and 848 indigenous accessions of cassava and 8 wild species in it...


Rajendran, P.G.Nair, S.G.Amma, C.S. EaswariVasudevan, KeSreekumari, M.T.[Recent progress in cassava varietal improvement in India]Recent progress in cassava varietal improvement in India
Chávez, RenéBrown, C. ReynoldsIwanaga, Masaru[Transfer of resistance to PLRV titer buildup from Solanum tuberosum to a tuber-bearing solanum gene pool]Transfer of resistance to PLRV titer buildup from Solanum tuberosum to a tuber-bearing solanum gene pool

An analysis of the recent trend in cassava area, production and yield during 1993-96 revealed an impressive increase in Tamil Nadu, which is the predominant state where cassava is grown as an industrial crop. Its present yield of 29 t/ha is the highest in the world. Even though the overall nation...


Nair, S.G.Rajendran, P.G.Naskar, S.K.Sreekumari, M.T.Unnikrishnan, M.Sheela, M.N.[Breeding and varietal improvement of cassava in India]Breeding and varietal improvement of cassava in India

Cassava (Manihot esculenta Crantz) has been grown in India for more than a century. Although cassava breeding was initiated during the 1940s in Kerala, intensive research on breeding of superior varieties began only after the establishment of the Central Tuber Crops Research Institute (CTCRI) in ...


Abraham, K.Nair, S.G.Naskar, S.K.[Cassava breeding and varietal dissemination in India: Major achievements during the past 25-30 years]Cassava breeding and varietal dissemination in India: Major achievements during the past 25-30 years

Cultivated bananas originated from interspecific hybridisation of two wild diploid (2n = 2x = 22) species, Musa acuminata and M. balbisiana that were the donors of the A and B genomes, respectively. Most cultivated bananas are triploids with 2n = 3x = 33 chromosomes. They vary in genome compositi...


Pillay, M.Hartman, J.Dimkpa, C.O.Makumbi, Dan[Establishing the genome of Sukali ndizi]Establishing the genome of Sukali ndizi
Autor: Ng, N.Q.

Many successful wide crosses among Asiatic cultivated Vigna species and between them and a wild species, V. trilobata, have been reported However, despite many attempts to cross the African cultivated Vigna species with wild Vigna species and the Asiatic cultivated Vigna species, there has been n...


Ng, N.Q.[Wide crosses of Vigna food legumes]Wide crosses of Vigna food legumes

Interspecific hybridization between Vigna unguiculata and V. vexillata always failed: no seed was obtained in both crossing directions. Two different barriers to crossability were found: a pre-zygotic barrier and a post-zygotic one. Many abnormalities were observed in pollen-tube development, whi...


Barone, A.Giudice, A. delNg, N.Q.[Barriers to interspecific hybridization between Vigna unguiculata and Vigna vexillata]Barriers to interspecific hybridization between Vigna unguiculata and Vigna vexillata

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