Zea mays Leaf Dev Li et al, 2010

Data set to be added in Release #21 Nov 2013, based on Li et al (2010)

Background:

The study authors analyzed the maize leaf transcriptome using Illumina sequencing. We mapped more than 120 million reads to define gene structure and alternative splicing events and to quantify transcript abundance along a leaf developmental gradient and in mature bundle sheath and mesophyll cells.

The samples were mapped to PO ids representing the plant structures and plant growth stages used.

PO anatomy and growth stage mapping table:

Tissue	Paper description	PO Anatomy term; PO ID	PO Development stage term; PO ID	Comments
Leaf base	base, 1 cm above the leaf three ligule	leaf lamina base; PO:0008019, vascular leaf; PO:0009025	represents sink tissue	Tissue Paper description PO Anatomy term 'PO ID 'PO Development stage term 'PO ID Comments Leaf base base, 1 cm above the leaf three ligule leaf lamina base PO:0008019 vascular leaf initiation stage PO:0001051 represents sink tissue " " vascular leaf PO:0009025 LP.03 three leaves visible stage PO:0007106 Transitional zone 1 cm below the leaf two ligule. vascular leaf PO:0009025 vascular leaf differentiation stage PO:0025574 Represents the sink-source transition " " " " LP.03 three leaves visible stage PO:0007106 Maturing zone 4 cm above the leaf two ligule. vascular leaf PO:0009025 vascular leaf expansion stage PO:0001052 Represents a maturing leaf, this position is between the leaf base and leaf tip. " " central zone of the leaf lamina PO:0008020 LP.03 three leaves visible stage PO:0007106 Leaf Tip represents a mature leaf. leaf tip PO:0025142 vascular leaf mature stage PO:0001053 " " leaf lamina tip PO:0025589 LP.03 three leaves visible stage PO:0007106 " " vascular leaf PO:0009025 " " mesophyll cells Main site of carbon fixation particulary in C4 grasses. leaf mesophyll cell PO:0004006 vascular leaf mature stage PO:0001053 " " leaf lamina tip PO:0025589 LP.03 three leaves visible stage PO:0007106 bundle sheath cells Main site of Calvin cycle particulary in C4 grasses. lbundle sheath cell PO:0025541 vascular leaf mature stage PO:0001053 " " leaf lamina tip PO:0025589 LP.03 three leaves visible stage PO:0007106