CYTOGENETIC AND MOLECULAR ANALYSIS OF THE MULTIPLE SEX-CHROMOSOME SYSTEM OF RUMEX ACETOSA

被引：51

作者：

REJON, CR ^{[1
]}

JAMILENA, M ^{[1
]}

RAMOS, MG ^{[1
]}

PARKER, JS ^{[1
]}

REJON, MR ^{[1
]}

机构：

[1] UNIV READING,SCH PLANT SCI,DEPT BOT,READING RG6 2AS,ENGLAND

来源：

HEREDITY | 1994年 / 72卷

关键词：

ORIGIN OF SEX MULTIPLES; PLANT SEX CHROMOSOMES; RUMEX ACETOSA; SEX-LOCALIZED REPETITIVE SEQUENCES;

D O I：

10.1038/hdy.1994.28

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

A repeated sequence of 180 bp in tandem array has been isolated from the dioecious plant species Rumex acetosa which has a multiple sex chromosome system, XX female/XY(1)Y(2) male. There are two or three thin C-bands on the X while the Ys are almost entirely heteropycnotic and DAPI-positive but contain no C-band material. The Ys thus represent massive blocks of facultative heterochromatin. The 180 bp sequence has been localized to the X and both Y chromosomes by in situ hybridization. The molecular data support an origin of the sex-multiple from a homomorphic chromosome pair rather than from a sex chromosome/autosome translocation.

引用

页码：209 / 215

页数：7

共 32 条

[1] Sex chromosomes in plants. [J].

Blackburn, KB .

NATURE, 1923, 112 :687-688

[2] REPEATED DNA AND HETEROCHROMATIN STRUCTURE IN RUMEX-ACETOSA [J].

CLARK, MS ;

PARKER, JS ;

AINSWORTH, CC .

HEREDITY, 1993, 70 :527-536

[3]

Dellaporta S.L., 1983, PLANT MOL BIOL REP, V1, P19, DOI [10.1007/BF02712670, DOI 10.1007/BF02712670]

[4]

Dobzhansky T, 1935, GENETICS, V20, P0377

[5] MAMMALIAN SEX-CHROMOSOMES - EVOLUTION OF ORGANIZATION AND FUNCTION [J].

GRAVES, JAM ;

WATSON, JM .

CHROMOSOMA, 1991, 101 (02) :63-68

[6]

John B, 1988, HETEROCHROMATIN MOL, P15

[7]

KIHARA H, 1923, Z INDUKTIVE ABSTAMMU, V39, P1

[8]

Macknight RH, 1939, GENETICS, V24, P180

[9]

Muller HJ, 1918, GENETICS, V3, P422

[10] Some genetic aspects of sex [J].

Muller, HJ .

AMERICAN NATURALIST, 1932, 66 :118-138

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