eprintid: 1212
rev_number: 19
eprint_status: archive
userid: 1
dir: disk0/00/00/12/12
datestamp: 2011-09-09 08:07:37
lastmod: 2012-06-12 05:48:47
status_changed: 2011-09-09 08:07:37
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
item_issues_count: 0
creators_name: Upadhyaya, H D
creators_name: Reddy, K N
creators_name: Sharma, S
creators_name: Varshney, R K
creators_name: Bhattacharjee, R
creators_name: Singh, Sube
creators_name: Gowda, C L L
icrisatcreators_name: Upadhyaya, H D
icrisatcreators_name: Reddy, K N
icrisatcreators_name: Sharma, S
icrisatcreators_name: Varshney, R K
icrisatcreators_name: Bhattacharjee, R
icrisatcreators_name: Singh, Sube
icrisatcreators_name: Gowda, C L L
affiliation: ICRISAT(Patancheru)
country: India
title: Pigeonpea composite collection and identification of germplasm for use in crop improvement programmes
ispublished: pub
subjects: s2.13
full_text_status: restricted
keywords: characterization; composite set; cytoplasmic-male sterility; diversity; mini core collection; pigeonpea;
reference set
note: A commissioned grant received from the GCP to develop
the global composite collection of pigeonpea is gratefully
acknowledged. Authors sincerely acknowledge the
contribution of Mr. Jacob Mathew and Mr. G Dasaratha
Rao from Genebank in evaluating the composite
collection and of Mr. K Eshwar and Ms. Seetha Kanan
from Applied Genomics Laboratory for genotyping the
composite collection.
abstract: Pigeonpea (Cajanus cajan (L.) Millsp. is one of the most important legume crops as major source for proteins, minerals and vitamins, in addition to its multiple uses as food, feed, fuel, soil enricher, or soil binder, and in fencing, roofing and basket making. ICRISAT's genebank conserves 13,632 accessions of pigeonpea. The extensive use of few parents in crop improvement is contrary to the purpose of collecting a large number of germplasm accessions and has resulted in a narrow base of cultivars. ICRISAT, in collaboration with the Generation Challenge Program, has developed a composite collection of pigeonpea consisting of 1000 accessions representing the diversity of the entire germplasm collection. This included 146 accessions of mini core collection and other materials. Genotyping of the composite collection using 20 microsatellite or simple sequence repeat (SSR) markers separated wild and cultivated types in two broad groups. A reference set comprising 300 most diverse accessions has been selected based on SSR genotyping data. Phenotyping of the composite collection for 16 quantitative and 16 qualitative traits resulted in the identification of promising diverse accessions for the four important agronomic traits: early flowering (96 accessions), high number of pods (28), high 100-seed weight (88) and high seed yield/plant (49). These accessions hold potential for their utilization in pigeonpea breeding programmes to develop improved cultivars with a broad genetic base. Pigeonpea germplasm has provided sources of resistance to abiotic and biotic stresses and cytoplasmic-male sterility for utilization in breeding programmes.
date: 2011
date_type: published
publication: Plant Genetic Resources
volume: 9
number: 1
publisher: Cambridge University Press
pagerange: 97-108
refereed: TRUE
issn: 1479-2621
official_url: http://dx.doi.org/10.1017/S1479262110000419
related_url_url: http://scholar.google.co.in/scholar?as_q=Pigeonpea+composite+collection+and+identification+of+germplasm+for+use+in+crop+improvement+programmes&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as_s
related_url_type: author
citation:   Upadhyaya, H D and Reddy, K N and Sharma, S and Varshney, R K and Bhattacharjee, R and Singh, Sube and Gowda, C L L  (2011) Pigeonpea composite collection and identification of germplasm for use in crop improvement programmes.  Plant Genetic Resources, 9 (1).  pp. 97-108.  ISSN 1479-2621     
document_url: http://oar.icrisat.org/1212/1/PlGeneticRes9_1_97-108_2011.pdf