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Main conclusion Cell-size enlargement plays a pivotal role in increasing the leaf size of triploid poplar, and polyploidization could change leaf shape. ABP1 was highly expressed in triploid plants and positively related to cell size.In the plant kingdom, the leaf is the most important energy production organ, and polyploidy often exhibits a “Gigas” effect on leaf size, which benefits agriculture...
Main conclusion High-quality and dense genetic maps were constructed, and leaf shape variation was dissected by QTL mapping in poplar.Species in the genus Populus, also known as poplars, are important woody species and considered model plants for perennial trees. High-density genetic maps are valuable genomic resources for population genetics. Here, we generated a high-quality and dense genetic map...
Main conclusionCotton S-adenosylmethionine decarboxylase-, rather than spermine synthase-, mediated spermine biosynthesis is required for salicylic acid- and leucine-correlated signaling in the defense response toVerticillium dahliae. Spermine (Spm) signaling is correlated with plant resistance to the fungal pathogen Verticillium dahliae...
Main conclusionThis genetic map forAgropyronGaertn. contained 1023 markers on seven linkage groups, with a total of 907.8cM and an average distance of 1.5cM between adjacent loci. Many wheat-Agropyron cristatum derivative lines exhibit superior agronomic traits, and part of them are valuable for future wheat breeding. To date, no high-density genetic map for Agropyron Gaertn. has been...
Δ8-sphingolipid desaturase and Δ6-fatty acid desaturase share high protein sequence identity. Thus, it has been hypothesized that Δ6-fatty acid desaturase is derived from Δ8-sphingolipid desaturase; however, there is no direct proof. The substrate recognition regions of Δ6-fatty acid desaturase and Δ8-sphingolipid desaturase, which aid in understanding the evolution of these two enzymes, have not...
Pyruvate kinase (PK) catalyzes the final step of glycolysis. There are few reports on the role of PK in rice. Here, we identified a novel rice dwarf mutant, designated as ospk1, showing dwarfism, panicle enclosure, reduced seed set, and outgrowth of axillary buds from culm nodes. Sequence analyses of 5′-RACE indicated that a single T-DNA was inserted in the transcriptional regulatory region of OsPK1...
Aldehyde dehydrogenase proteins consist of a superfamily and the family 7 (ALDH7) is a typical group with highly conserved proteins across species. It catalyzes oxidation of α-aminoadipic semialdehyde (AASA) in lysine degradation, participates in protection against hyperosmotic stress, and detoxifies aldehydes in human; however, its function in plants has been much less documented. Here we reported...
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