B Chromosome Polymorphism in Maize Landraces: Adaptive vs. Demographic Hypothesis of Clinal Variation
نویسندگان
چکیده
منابع مشابه
B chromosome polymorphism in maize landraces: adaptive vs. demographic hypothesis of clinal variation.
Cytogenetic analysis of maize landraces from northwestern Argentina has revealed an altitudinal cline in the mean number of B chromosomes (B's) per plant, with cultivars growing at higher altitudes exhibiting a higher number of B's. Altitudinal and longitudinal clines are frequently interpreted as evidence of selection, however, they can also be produced by the interplay between drift and spati...
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ژورنال
عنوان ژورنال: Genetics
سال: 2007
ISSN: 1943-2631
DOI: 10.1534/genetics.107.075440