| 000 | 02244nam a2200277Ia 4500 | ||
|---|---|---|---|
| 003 | MX-MdCICY | ||
| 005 | 20250625162447.0 | ||
| 040 | _cCICY | ||
| 090 | _aB-20345 | ||
| 245 | 1 | 0 | _aUnpredicted, rapid and unintended structural and functional changes occurred during early domestication of Silphium integrifolium, a perennial oilseed |
| 490 | 0 | _vPlanta, 258(1), p.18, 2023 | |
| 520 | 3 | _aSelection for increased yield changed structure, physiology and overall resource-use strategy from conservative towards acquisitive leaves. Alternative criteria can be considered, to increase yield with less potentially negative traits. We compared the morphology, anatomy and physiology of wild and semi-domesticated (SD)accessions of Silphium integrifolium (Asteraceae), in multi-year experiments. We hypothesized that several cycles of selection for seed-yield would result in acquisitive leaves, including changes predicted by the leaf economic spectrum. Early-selection indirectly resulted in leaf structural and functional changes. Leaf anatomy changed, increasing mesophyll conductance and the size of xylem vessels and mesophyll cells increased. Leaves of SD plants were larger, heavier, with lower stomatal conductance, lower internal CO2 concentration, and lower resin concentration than those of wild types. Despite increased water use efficiency, SD plants transpired 25 percent more because their increase in leaf area. Unintended and undesired changes in functional plant traits could quickly become fixed during domestication, shortening the lifespan and increasing resource consumption of the crop as well as having consequences in the provision and regulation of ecosystem services. | |
| 650 | 1 | 4 | _aA/C I |
| 650 | 1 | 4 | _aCHLOROPHYLL FLUORESCENCE |
| 650 | 1 | 4 | _aGAS EXCHANGE |
| 650 | 1 | 4 | _aLEAF ANATOMY |
| 650 | 1 | 4 | _aMESOPHYLL CONDUCTANCE |
| 650 | 1 | 4 | _aNET CO2 UPTAKE |
| 700 | 1 | 2 | _aRavetta, D. A. |
| 700 | 1 | 2 | _aVilela, A. E. |
| 700 | 1 | 2 | _aGonzalez-Paleo, L. |
| 700 | 1 | 2 | _aVan Tassel, D. L. |
| 856 | 4 | 0 |
_uhttps://drive.google.com/file/d/1Ii5KOT80CSeywt9xoEf3rxOur6oMgos8/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 |
_2Loc _cREF1 |
||
| 008 | 250602s9999 xx |||||s2 |||| ||und|d | ||
| 999 |
_c54441 _d54441 |
||