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HYBRIDS BETWEEN LOLIUM PERENNE AND FESTUCA PRATENSIS
Author(s) -
GYMER P. T.,
WHITTINGTON W. J.
Publication year - 1975
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1975.tb02618.x
Subject(s) - hybrid , biology , lolium perenne , meiosis , festuca pratensis , pollen , lolium , festuca , chromosome pairing , botany , fertility , poaceae , agronomy , genetics , population , demography , sociology , gene
SUMMARY Meiosis and fertility have been studied in natural and artificial hybrids between Lolium perenne and Festuca pratensis. In diploids, meiosis was normal except for a few desynaptic hybrids, but pollen fertility was very low, probably because of genie or chromosomal unbalance. In triploids the extent of homoeologous pairing varied, as did fertility. Several categories of synthetic hybrids were compared with their natural equivalents, and it is considered most likely that all the natural hybrids studied were F 1 plants, although there were some discrepancies. Those that were triploid were probably produced by unreduced pollen grains.