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Crossability of Pearl Millet with Wild Pennisetum Species
Author(s) -
Dujardin Michel,
Hanna Wayne W.
Publication year - 1989
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1989.0011183x002900010019x
Subject(s) - pennisetum , biology , pearl , hybrid , ploidy , interspecific hybrids , botany , interspecific competition , cultivar , gene , genetics , philosophy , theology
Wild relatives of cultivated species have genes that potentially could be used to improve crop cultivars. The objective of this research was to study the crossability of eight wild Pennisetum species with diploid and tetraploid pearl millet, P. glaucum (L.) R. Br. Twenty and 28 interspecific hybrids, respectively, were produced between diploid (2 n = 14) pearl millet and P. orientate L. C. Rich. (2 n = 36), and P. setaceum (Forssk.) Chiov. (2 n = 27). Only three hybrids were produced between tetraploid (2 n = 28) pearl millet and P. orientate . Three hundred thirty‐seven interspecific hybrids were produced when tetraploid pearl millet was pollinated with P. squamulatum Fresen., but no hybrids were produced when diploid pearl millet was used as the female parent. No interspecific hybrids were produced between diploid or tetraploid pearl millet crossed with P. ramosum (Hoschst.) Schweinf. (2 n = 10), P. mevanum Leeke (2 n = 32), P. macrourum Trin. (2 n = 36), P. pedicellatum Trin. (2 n = 54), and P. polystachion (L.) Schult. (2 n = 54). Fertility of pearl millet ✕ P. squamulatum hybrids indicated partial homology between the pearl millet A genome and one or more genomes of P. squamulatum .