Ed van Paassen – Plant Expert
Opposite of abiotic (environmental) factors. Non-biological environmental factors that affect plant growth and development in…
Genes that are positioned so close on the same chromosome, that chances of crossing-over between…
Plant with greatly reduced or no formation of chlorophyll. Albino plants have a white-yellow appearance….
A particular variant of a gene. Expression of an allele can be recessive, dominant or…
The combination of two alleles, which comprise the gene pair of a diploid plant.
A series of directed crossings to test if the inheritance pattern of the trait matches…
Type of polygenes where different polygenic factors have an unequal dose effect. OT: anisomery ↔ isomery BT:…
Sterile or disinfected, free of germs.
A cross regarding the inheritance of two alleles (properties). Example: the cross "AABB x aabb". Synonyms: bigenic…
A trait that is determined by two genes. More precisely: a trait that is inherited…
Opposite of abiotic (environmental) factors. Living organisms (plants, insects, bacteria, animals) in an ecosystem interact…
Unit of genetic recombination frequency for gene loci or markers on the same chromosome. A…
Phenomenon in biology that two types of pollen grains (carrier of allele "A" and "a"…
Phenomenon that groups (layers) of cells of a plant are genetically not identical to each…
DNA molecule. A molecule that carries most of the genetic material of a plant. Note:…
Linked genes (loci) where both dominant alleles are positioned on one chromosome and both recessive…
Phenomenon that two homologous chromosomes exchange pieces of DNA during meiosis. The chance of a…
Groups of plants that have undergone accelerated evolution (directional selection) under human influence in a…
Type of epistasis where the dominant alleles A and B have the same effect and…
Phenomenon that a diseased seed plant still produces healthy seed, because the pathogen does not…
The process whereby humans change plant properties by selection and breeding, so the plants become…
Type of epistasis where the dominant allele A is epistatic over (suppresses) alleles B/b. In…
A genotype, originating from a haploid plant, after chromosome doubling. Haploids are valuable genetic material…
(plant breeding) A genetic phenomenon that, in the course of time, a seed propagated cultivar…
The proces of emasculating flowers. Emasculation prevents spontaneous self-pollination and enables a targeted cross pollination. RT:…
Identifiable factors in the environment that affect the survival, growth and development of living plant…
Phenomenon in genetics that one gene (a pair of alleles) suppresses the operation of another…
