Search Constraints
Search Results
-
2015
Journal article
Physical mapping of ribosomal DNA and genome size in diploid and polyploid North African Calligonum species (Polygonaceae).
Gouja, Hassen ; Garnatje, Teresa ; Hidalgo, Oriane ; Neffati, Mohamed ; Raies, Aly …
Cytogenetics, 35S rDNA, Genome organization, FISH, Fluorochrome banding, and 5S rDNA
-
2021
Journal article
Nuclear–plastid discordance indicates past introgression in Epidendrum species (Laeliinae: Orchidaceae) with highly variable chromosome numbers.
Here we study a challenging group of karyotypically highly variable Epidendrum spp. using phylogenetic methods to help understand how hybridization/introgression contributes to karyotype evolution. We hypothesize that species with great chromosome number variation are a result of past hybridization/introgression. Conflicting topologies in trees constructed using separate plastid and nuclear datasets... -
2020
Journal article
How diverse is heterochromatin in the Caesalpinia group? Cytogenomic characterization of Erythrostemon hughesii Gagnon & G.P. Lewis (Leguminosae: Caesalpinioideae)
Main conclusion Cytogenomic characterization of Erythrostemon hughesii reveals a heterogeneity of repeats in its subtelomeric heterochromatin. Comparative analyses with other Caesalpinia group species reveal a significant reduction in the abundance of Ty3-gypsy/Chromovirus Tekay retrotransposons during its evolution. In numerically stable karyotypes, repetitive DNA variability is one of the main causes...Mata-Sucre, Yennifer ; Sader, Mariela ; Van-Lume, Brena ; Gagnon, Edeline ; Pedrosa-Harand, Andrea …
Genome evolution, Satellite DNA, Mobile elements, Repetitive sequences, and Cytogenetics