Tracing domestication traits (shattering and plant growth habit) in an interspecific lentil population: LR-70

Overview
2017

Growth habit is one of the most significant agronomic traits involved in the domestication process. Growth habit in lentil breeding encompasses alterations related to plant structure affecting production and yield stability. This population, Eston (L. culinaris) x IG 72623 (L. odemensis), is being evaluated to investigate the genetic and phenotypic variability for agronomic and growth habit and to identify the molecular mechanisms underlying the quantitative variation for these traits in wild and cultivated lentils. This population is being grown at the Investigation field in a single replication and at the Crops Sciences Field Lab in pots in three replications in 2017. Days to emergence, percentage emergence, days to flowering, days to maturity, plant height at maturity, plant architecture on the scale of 1-3 (1 = Prostrate, 2= Semi erect, 3= erect) will be recorded. This population has been genotyped and mapped using a genotyping-by-sequencing approach. QTLs underlying this trait will be identified followed by markers or candidate genes linked to these important agronomic and domestication traits.

Properties
Additional information about this project:
Property NameValue
TypeResearch Experiment
Research Area
Breeding & Genetics

Plant breeding is the art and science of changing the traits of plants in order to produce desired characteristics. Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for propagation, to more complex molecular techniques. ... [more]

 
Physiology

The objectives of the Pulse Research Group Physiology Program is to investigate whole plant and field responses of crops, particularly pulse crops, to nutrient, water and weather.  To understand and improve yield formation in pulse crops in a warming climate.  To investigate and improve nitrogen ... [more]

 
Related Species

Lentil (Lens culinaris Medik.) is an important pulse crop with annual production of 3-4 Mt across 70 countries (Cubero et al. 2009. DOI 10.1079/9781845934873.0000; pg. 13). Lentils are a good source of protein, carbohydrates, micronutrients and vitamins for human nutrition and is consumed in more than 120 countries. Furthermore, their small seed size and flat shape make them relatively quick cooking and easily decorticated compared to most other grain legumes (Sharpe et al. 2013. BMC Genomics. DOI 10.1186/1471-2164-14-192). The Lentil plant has a bushy growth habit with a height of about 40 cm; the seeds are lens-shaped and usually grow two per pod. ... [more]

 

Germplasm denoted as Lens interspecific should be a direct cross between two different Lens species.

 

Lens odemensis is a wild relative of Lens culinaris with semi-hastate stipules which form horizontal positions on the stem1. Recent sequence analysis indicates that Lens odemensis is in the secondary gene pool of L. culinaris2. ... [more]

 
Sequences, Variants & Markers