Microsporogenesis in Male Sterile and Male Fertile &lt;i&gt;Crotalaria pallida&lt;/i&gt; Ait

Arora, Disha; Gupta, P. K.

doi:10.1508/cytologia.49.685

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…The anatomical characteristics of anther development in these male sterile lines is identical to that of the hermaphrodite anthers until the formation of archesporial initials. Anatomical studies relevant to male sterility, have reported several causes of male sterility such as tapetal abnormality (Holford et al, 1991, Strittmatter 2006, Chen et al, 2009, premature dissolution of callose (Worall et al 1992), anther (Dawson et al, 1993;Sanders et al, 1999) and meiotic defects (Arora andGupta 1984, Graybosch andPalmer 1988;Zhang and Pan 1991). However, unlike previous reports, it is interesting to note that male sterility in G. fragrantissima may have occurred due to abnormal development of archespororial initials.…”

Section: Discussionmentioning

confidence: 99%

Comparative analysis of anther development in natural populations indicate premature degradation of sporogenous tissue as a cause of male sterility inGaultheria fragrantissima

Langstang¹,

Kharshiing²,

Venugopal

2018

Preprint

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Gaultheria fragrantissima Wall. (Ericaceae) is a gynodioecious species having both hermaphrodite and male sterile plants. In this study, we present a comparative analysis of the different stages of anther development in naturally occuring hermaphrodite and male sterile populations of G. fragrantissima found in Meghalaya, India. While hermaphrodite flowers had well developed anther lobes, the male sterile flowers formed a white unorganized mass of tissues with a tuft of hairy outgrowth at the tip of the stamens. Histological analyses of progressive anther development in both the lines indicate an abnormal development of the sporogenous tissue in the developing anthers in the male steril line. While anther development in the hermaphrodite line was of the dicotyledonous type, the anthers of male sterile line showed progressive degradation of the sporogenous tissues and wall layers. Pollen development was also disrupted in male sterile line resulting in distorted pollen due to the irregular projection of exine wall. Our results suggest that premature degradation of the sporogenous tissues during anther development determines male sterility in G. fragrantissima.

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Section: Discussionmentioning

confidence: 99%

Comparative analysis of anther development in natural populations indicate premature degradation of sporogenous tissue as a cause of male sterility inGaultheria fragrantissima

Langstang¹,

Kharshiing²,

Venugopal

2018

Preprint

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Sunnhemp breeding: Challenges and prospects

et al. 2016

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Sunnhemp (Crotalaria juncea L.) is an important fibre crop of tropical and sub-tropical parts of the world and has multiple uses. With the commercialization of agriculture, major food crops and cash crops gained momentum and fibre crops, particularly sunnhemp lagged behind on account of increased availability of cheap synthetic fibres. In the present context, the cultivation of sunnhemp is limited to marginal lands and with minimum inputs. Subsequently, the production and productivity of the crop has declined. Productivity of sunnhemp can be increased by genetic improvement of the crop. However, very little reports are available detailing genetics of different economic traits. Hence, an attempt is being made to collect all the scattered relevant genetic information in order to make the information useful in expediting the genetic improvement of the crop.

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Microsporogenesis in Male Sterile and Male Fertile <i>Crotalaria pallida</i> Ait

Cited by 2 publications

References 17 publications

Comparative analysis of anther development in natural populations indicate premature degradation of sporogenous tissue as a cause of male sterility inGaultheria fragrantissima

Comparative analysis of anther development in natural populations indicate premature degradation of sporogenous tissue as a cause of male sterility inGaultheria fragrantissima

Sunnhemp breeding: Challenges and prospects

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