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THE RELATIONSHIPS BETWEEN MALE AND FEMALE FERTILITY AND AMONG TAXA IN DIPLOID WHEATS
Author(s) -
Sharma Hari C.,
Waines J. Giles
Publication year - 1981
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1981.tb06384.x
Subject(s) - biology , ploidy , hybrid , backcrossing , pollen , sterility , botany , domestication , polyploid , fertility , genetics , gene , population , sociology , demography
Pollen stainability appears to be a reliable indication of the ultimate seed set in diploid interspecific hybrid and backcross populations in Triticum L. The correlation between percent pollen stained and number of seeds set is positive and highly significant ( r = 0.92). Estimates of male and female fertility in the hybrids and backcrosses are interpreted to indicate that the domesticated diploid Triticum monococcum L. and wild diploid T. boeoticum Boiss. em. Schiem, are one and the same species, and that T. urartu Tum. is not a variety of monococcum or boeoticum , but rather a separate species. The F 1 hybrids and backcrosses between monococcum and boeoticum are normally male and female fertile. The F 1 hybrids between monococcum and urartu are completely sterile and complete to partial sterility exists in backcrosses.