FERTILE HYBRIDS DERIVED FROM A WIDE SPECIES CROSS IN ASTER
نویسندگان
چکیده
منابع مشابه
Chromosome Behavior in Fertile Triploid Aster Hybrids.
HE sterility of triploids and other unbalanced polyploids is generally conT ceded to be a consequence of irregularities in the distribution of univalents and multivalents at meiosis. Occasional viable gametes are produced, however, because of nonrandom orientation and segregation of chromosome associations. Thus, SATINA and BLAKESLEE (1937a, b) found a higher frequency of n and 2n chromosome nu...
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ژورنال
عنوان ژورنال: Evolution
سال: 1957
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1957.tb02919.x