Plant metabolism and alkaloid levels can be regulated by transcription factors that regulate the nicotinic alkaloid biosynthetic pathway. In one embodiment, the disclosure provides a transcription factor that negatively regulates alkaloid biosynthesis, such as nicotine biosynthesis.

The present invention relates to leaf chicory (Cichorium intybus subsp. intybus var. foliosum) nuclear recessive male sterile mutants, to a newly identified polymorphic molecular marker for the nuclear recessive male sterile character in this species, to methods for the selection of leaf chicory nuclear recessive male sterile mutants, to methods for the production of seed parent male sterile and pollen donor male fertile inbred lines of leaf chicory, including all cultivated types of radicchio, that are, respectively, homozygous for the nuclear recessive male sterile mutant allele or homozygous for the male fertile wildtype allele, and to methods for the constitution of F1 hybrids that are all heterozygous at the ms locus.

The present invention relates to leaf chicory (Cichorium intybus subsp. intybus var. foliosum) nuclear recessive male sterile mutants, to a newly identified polymorphic molecular marker for the nuclear recessive male sterile character in this species, to methods for the selection of leaf chicory nuclear recessive male sterile mutants, to methods for the production of seed parent male sterile and pollen donor male fertile inbred lines of leaf chicory, including all cultivated types of radicchio, that are, respectively, homozygous for the nuclear recessive male sterile mutant allele or homozygous for the male fertile wildtype allele, and to methods for the constitution of F1 hybrids that are all heterozygous at the ms locus.

A method for breeding new purple-orange Chinese cabbage germplasm crosses the purple head Chinese cabbage inbred line 11S96 as the male parent and the orange Chinese cabbage inbred line 11J11 as the female parent. On the basis of selecting individual plants with good heading property in the F.sub.2 population, molecular markers are used to select individual plants carrying the purple-head gene and the orange gene. Through selfing of individual plants for three consecutive generations, a new Chinese cabbage germplasm with green outer leaves and purple-orange head leaves is bred. This method aggregates the purple-head gene and orange gene which are expressed in the head leaves of Chinese cabbage, creating a new Chinese cabbage germplasm with purple-orange head leaves. It enriches Chinese cabbage breeding materials, lays the foundation for breeding the new purple-orange Chinese cabbage variety, and sets a precedent for the aggregation of the head color traits of Chinese cabbage.

A method for breeding new purple-orange Chinese cabbage germplasm crosses the purple head Chinese cabbage inbred line 11S96 as the male parent and the orange Chinese cabbage inbred line 11J11 as the female parent. On the basis of selecting individual plants with good heading property in the F.sub.2 population, molecular markers are used to select individual plants carrying the purple-head gene and the orange gene. Through selfing of individual plants for three consecutive generations, a new Chinese cabbage germplasm with green outer leaves and purple-orange head leaves is bred. This method aggregates the purple-head gene and orange gene which are expressed in the head leaves of Chinese cabbage, creating a new Chinese cabbage germplasm with purple-orange head leaves. It enriches Chinese cabbage breeding materials, lays the foundation for breeding the new purple-orange Chinese cabbage variety, and sets a precedent for the aggregation of the head color traits of Chinese cabbage.

The present invention provides an inbred corn line designated GID2034, methods for producing a corn plant by crossing plants of the inbred line GID2034 with plants of another corn plant. The invention further encompasses all parts of inbred corn line GID2034, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line GID2034, and plants produced according to these methods.

The present invention provides an inbred corn line designated ID3881, methods for producing a corn plant by crossing plants of the inbred line ID3881 with plants of another corn plant. The invention further encompasses all parts of inbred corn line ID3881, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line ID3881, and plants produced according to these methods.

The present invention provides an inbred corn line designated GAQ2027, methods for producing a corn plant by crossing plants of the inbred line GAQ2027 with plants of another corn plant. The invention further encompasses all parts of inbred corn line GAQ2027, including culturable cells. Additionally provided herein are methods for introducing transgenes into inbred corn line GAQ2027, and plants produced according to these methods.

Inbred corn line, designated WCC153, is disclosed. The invention relates to the seeds of inbred corn line WCC153, to the plants and plant parts of inbred corn line WCC153, and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line WCC153 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line WCC153 and/or of the hybrids produced using the inbred as a parent. The invention further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other inbred corn lines derived from inbred corn line WCC153.

Provided herein are genetic markers and a coding sequence associated with a low- or ultra-low anatabine trait in tobacco.