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Insect-aided natural out-crossing in four wild relatives of pigeonpea

Insect-aided natural out-crossing in pigeonpea [ Cajanus cajan (L.) Millsp.] is a common event. It is considered to be a prime constraint in maintaining genetic purity of cultivars and genetic stocks. On the contrary, the out-crossing has also been exploited to select high-yielding varieties from la... Full description

Journal Title: Euphytica 2010, Vol.173(3), pp.329-335
Main Author: Saxena, K.
Other Authors: Kumar, R.
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0014-2336 ; E-ISSN: 1573-5060 ; DOI: 10.1007/s10681-009-0088-0
Link: http://dx.doi.org/10.1007/s10681-009-0088-0
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recordid: springer_jour10.1007/s10681-009-0088-0
title: Insect-aided natural out-crossing in four wild relatives of pigeonpea
format: Article
creator:
  • Saxena, K.
  • Kumar, R.
subjects:
  • Natural out-crossing
  • Pigeonpea
  • [ (L.) Millsp.]
  • Natural hybrids
  • Male-sterility
  • Wild relatives
ispartof: Euphytica, 2010, Vol.173(3), pp.329-335
description: Insect-aided natural out-crossing in pigeonpea [ Cajanus cajan (L.) Millsp.] is a common event. It is considered to be a prime constraint in maintaining genetic purity of cultivars and genetic stocks. On the contrary, the out-crossing has also been exploited to select high-yielding varieties from landraces. This paper, for the first time, reports natural out-crossing in four wild relatives of pigeonpea. The highest (17.1%) natural out-crossing was recorded in C. lineatus and it was comparable to the control cultivar Asha (22.2%). C. albicans and C. scarabaeoides exhibited 10.0 and 8.3% out-crossing, respectively. C. sericeus was found to have lowest (2.3%) natural out-crossing. A process of breeding a new cytoplasmic-nuclear male-sterility (CMS) system arising from a natural hybrid of C. lineatus has also been described. Once stabilized, this CMS will be used in breeding programs aimed to develop high-yielding pigeonpea hybrids.
language: eng
source:
identifier: ISSN: 0014-2336 ; E-ISSN: 1573-5060 ; DOI: 10.1007/s10681-009-0088-0
fulltext: fulltext
issn:
  • 1573-5060
  • 15735060
  • 0014-2336
  • 00142336
url: Link


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titleInsect-aided natural out-crossing in four wild relatives of pigeonpea
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subjectNatural out-crossing ; Pigeonpea ; [ (L.) Millsp.] ; Natural hybrids ; Male-sterility ; Wild relatives
descriptionInsect-aided natural out-crossing in pigeonpea [ Cajanus cajan (L.) Millsp.] is a common event. It is considered to be a prime constraint in maintaining genetic purity of cultivars and genetic stocks. On the contrary, the out-crossing has also been exploited to select high-yielding varieties from landraces. This paper, for the first time, reports natural out-crossing in four wild relatives of pigeonpea. The highest (17.1%) natural out-crossing was recorded in C. lineatus and it was comparable to the control cultivar Asha (22.2%). C. albicans and C. scarabaeoides exhibited 10.0 and 8.3% out-crossing, respectively. C. sericeus was found to have lowest (2.3%) natural out-crossing. A process of breeding a new cytoplasmic-nuclear male-sterility (CMS) system arising from a natural hybrid of C. lineatus has also been described. Once stabilized, this CMS will be used in breeding programs aimed to develop high-yielding pigeonpea hybrids.
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titleInsect-aided natural out-crossing in four wild relatives of pigeonpea
descriptionInsect-aided natural out-crossing in pigeonpea [ Cajanus cajan (L.) Millsp.] is a common event. It is considered to be a prime constraint in maintaining genetic purity of cultivars and genetic stocks. On the contrary, the out-crossing has also been exploited to select high-yielding varieties from landraces. This paper, for the first time, reports natural out-crossing in four wild relatives of pigeonpea. The highest (17.1%) natural out-crossing was recorded in C. lineatus and it was comparable to the control cultivar Asha (22.2%). C. albicans and C. scarabaeoides exhibited 10.0 and 8.3% out-crossing, respectively. C. sericeus was found to have lowest (2.3%) natural out-crossing. A process of breeding a new cytoplasmic-nuclear male-sterility (CMS) system arising from a natural hybrid of C. lineatus has also been described. Once stabilized, this CMS will be used in breeding programs aimed to develop high-yielding pigeonpea hybrids.
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abstractInsect-aided natural out-crossing in pigeonpea [ Cajanus cajan (L.) Millsp.] is a common event. It is considered to be a prime constraint in maintaining genetic purity of cultivars and genetic stocks. On the contrary, the out-crossing has also been exploited to select high-yielding varieties from landraces. This paper, for the first time, reports natural out-crossing in four wild relatives of pigeonpea. The highest (17.1%) natural out-crossing was recorded in C. lineatus and it was comparable to the control cultivar Asha (22.2%). C. albicans and C. scarabaeoides exhibited 10.0 and 8.3% out-crossing, respectively. C. sericeus was found to have lowest (2.3%) natural out-crossing. A process of breeding a new cytoplasmic-nuclear male-sterility (CMS) system arising from a natural hybrid of C. lineatus has also been described. Once stabilized, this CMS will be used in breeding programs aimed to develop high-yielding pigeonpea hybrids.
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doi10.1007/s10681-009-0088-0
pages329-335
date2010-06