Recently, the genome of Diplacus puniceus with 18,000 genes was published. Many thanks to the authors. We now have the genome of this species coupled with the transcriptomes of both varieties, namely yellow and red flowered ecotypes.
We estimate that 30-100 genes and TFs are involved in this transition. Even if hybridization (YxR) occurs, it is genetically leveled. These are inserts that can be localized on the intron segments of the genes. The modular structure of the genes is preserved. The genes are only slightly changed in their control values. Color and shape genes change practically simultaneously. This drift can now be observed both genetically and morphometrically. Such processes are temporal and spatial. Rapid climate change has triggered this transition. -> Modular evolution
Modular Evolution DRAFT!
Dec 08 2022 rolfy
genomic details: -->
Diplacus results 2022, phase space laboratory model
The model with floral Lab Color and other measured floral features.
Assume that one has a SAGA-like complex in each cell in each plant that allows gradual development (evolution). If the structures are spatially and temporally "quantum coupled" with other similar plants, the above phenomena can be interpreted.
The "hybrid swarms" are then caused by the control process of such a SAGA complex. The default values are no longer set for specific flower characteristics for a short time. In the phase space, one realizes a drifting. This drifting occurs for physical reasons; it has a direction and endpoints (attractors). As soon as the new values are reached, they are read in by the complex cis/trans and passed on to the descendants.
Thus, drifting occurs around an attractor. The synchronicity of drifting of all similar plants throughout the distribution area is striking.
In Santa Ana Mountain, this results in a new plant species (20 years). The Diplacus transition zone leads to a broader zone of red-flowered plants. The yellow-flowered plants also change uniformly. The so-called hybrid zone is thus gradually dissolved.
In the phase space, one realizes a simple tracking of the development of flower stages. An observation over 10 to 20 years is worthwhile and brings new insights into the events.