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CHROMOSOME RELATIONSHIPS OF DIPLOID SPECIES OF GRINDELIA (COMPOSITAE) FROM COLORADO, NEW MEXICO, AND ADJACENT AREAS'
TLDR
The genomes and interrelationships of 17 Grindelia species are reviewed and a new genome is presented for G. subalpina which would explain the configurations of two bivalents and two quadrivalents observed in G. fastigiata hybrids.
A Study of Interchange Heterozygosity in a Population of Datura Meteloides.
TLDR
The genus Datura has been the subject of many studies of racial and specific differentiation with respect to interchanges, but a study of a population containing interchange heterozygotes with the aim of ascertaining whether they are favored by natural selection has not been carried out.
Cytotype Distribution of Atriplex canescens (Chenopodiaceae) of Southern New Mexico and Adjacent Texas
TLDR
The distribution of the cytotypes of this species is resolved and ecological parameters determining that distribution are considered, particularly with respect to leaf and fruit bract shape and size.
A CYTOGENETIC ANALYSIS OF CERTAIN POLYPLOIDS IN GRINDELIA (COMPOSITAE)
TLDR
Close genetic relationships between the diploids and between the tetraploids are indicated, and geographical, ecological, and seasonal barriers to gene exchange exist, and attempts to obtain hybrids between diploid and tetraPloid interspecific hybrids were successful in a few cases.
Evidence for nuclear-cytoplasmic incompatibility between Allium fistulosum and A. cepa
TLDR
The data and observations support the hypothesis of nuclear-cytoplasmic incompatibility interactions between the bunching and bulb onion species.
Twin Spots on Leaves of Homozygous Cotton Plants
TLDR
Paired and unpaired spots of normal green and greenish yellow were observed on the two simple leaves and the first compound leaf of a heterozygous Y, , y I , light-green plant.
Chromosome characteristics and behavior differences in Allium fistulosum L., A. cepa L, their F1 hybrid, and selected backcross progeny
TLDR
Unusual crossing over and multivalent associations suggest that the 5F subtelocentric chromosome of Allium fistulosum is involved in at least one translocation of A. cepa.
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