Vicia hirsuta S. F. Gray

原著和名: スズメノエンドウ科名: マメ科 = Leguminosae採集地: 千葉県 四街道市 物井〜亀崎 (下総 四街道市 物井〜亀崎)採集日: 1982/5/3採集者: 萩庭丈壽整理番号: JH031278国立科学博物館整理番号: TNS-VS-98127

Additional file 5: Figure S5. of Detection of Novel QTLs Regulating Grain Size in Extra-Large Grain Rice (Oryza sativa L.) Lines

Selection of segregation lines to evaluate the effect of quantitative trait loci (QTLs) detected on Chr3 and Chr6L. F3 lines with one segregating locus for Chr3 or Chr6L and three other fixed loci were selected. From these two lines, F4 plants homozygous for BG23 or LG10 were selected to evaluate the effect of QTLs on Chr3 and Chr6L. White and black boxes indicate BG23 and LG10 chromosomes, respectively. (JPG 287 kb

Additional file 2: Figure S2. of Detection of Novel QTLs Regulating Grain Size in Extra-Large Grain Rice (Oryza sativa L.) Lines

Logarithm of odds (LOD) curves of five quantitative trait locus (QTL) analyses. LOD curves of QTL analyses for grain length are shown in A, C, E, G, and I. LOD curves of QTL analyses for grain length are shown in B, D, F, H, and J. F2 populations derived from Kasalath × BG23 (A and B), Kasalath × LG10 (C and D), Nipponbare × BG23 (E and F), Nipponbare × LG10 (G and H), and BG23 × LG10 (I and J) crosses. Dashed lines indicate LOD = 3.0 as threshold value. (JPG 541 kb

Additional file 7: Table S2. of Detection of Novel QTLs Regulating Grain Size in Extra-Large Grain Rice (Oryza sativa L.) Lines

Primer sequences employed in the quantitative trait locus (QTL) analysis and genetic mapping using the population from the BG23 × LG10 cross. (XLSX 43 kb

Rare allele of a previously unidentified histone H4 acetyltransferase enhances grain weight, yield, and plant biomass in rice.

Grain weight is an important crop yield component; however, its underlying regulatory mechanisms are largely unknown. Here, we identify a grain-weight quantitative trait locus (QTL) encoding a new-type GNAT-like protein that harbors intrinsic histone acetyltransferase activity (OsglHAT1). Our genetic and molecular evidences pinpointed the QTL-OsglHAT1's allelic variations to a 1.2-kb region upstream of the gene body, which is consistent with its function as a positive regulator of the traits. Elevated OsglHAT1 expression enhances grain weight and yield by enlarging spikelet hulls via increasing cell number and accelerating grain filling, and increases global acetylation levels of histone H4. OsglHAT1 localizes to the nucleus, where it likely functions through the regulation of transcription. Despite its positive agronomical effects on grain weight, yield, and plant biomass, the rare allele elevating OsglHAT1 expression has so far escaped human selection. Our findings reveal the first example, to our knowledge, of a QTL for a yield component trait being due to a chromatin modifier that has the potential to improve crop high-yield breeding

Rare allele of a previously unidentified histone H4 acetyltransferase enhances grain weight, yield, and plant biomass in rice.

Grain weight is an important crop yield component; however, its underlying regulatory mechanisms are largely unknown. Here, we identify a grain-weight quantitative trait locus (QTL) encoding a new-type GNAT-like protein that harbors intrinsic histone acetyltransferase activity (OsglHAT1). Our genetic and molecular evidences pinpointed the QTL-OsglHAT1's allelic variations to a 1.2-kb region upstream of the gene body, which is consistent with its function as a positive regulator of the traits. Elevated OsglHAT1 expression enhances grain weight and yield by enlarging spikelet hulls via increasing cell number and accelerating grain filling, and increases global acetylation levels of histone H4. OsglHAT1 localizes to the nucleus, where it likely functions through the regulation of transcription. Despite its positive agronomical effects on grain weight, yield, and plant biomass, the rare allele elevating OsglHAT1 expression has so far escaped human selection. Our findings reveal the first example, to our knowledge, of a QTL for a yield component trait being due to a chromatin modifier that has the potential to improve crop high-yield breeding