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More to the bunch: Study finds large chromosomal swaps key to banana domestication

Scientists have identified a large chromosomal swap in banana crops, which may help explain their reduced fertility and increased susceptibility to diseases like Panama disease. The study found that this chromosomal rearrangement was preferentially transmitted to progeny, highlighting its significance for breeding programs.

Western aspen trees commonly carry extra set of chromosomes

A new study found that over 60% of western aspen trees in Utah and Colorado are triploid, with this genetic anomaly causing altered physical traits such as sterility or reduced fertility. The researchers also discovered a correlation between triploidy rates and regional climate variation.

SourcePLOS·JournalPLOS ONE·DateOct 31, 2012